A COMPLETE NUMERACY PROGRAMME FOR PRIMARY SCHOOLS 4th Class Satellite Book Answers

A COMPLETE NUMERACY PROGRAMME FOR PRIMARY SCHOOLS 4th Class Satellite Book Answers Topic 1: Place Value Page 5 1. (a) 500 (b) 100 (c) 900 (d) 100 (e) 100 (f) 700 (g) 8,300 (h) 4,400 (i) 6,800 (j) 1,700 2. (a) 6,000 (b) 2,000 (c) 9,000 (d) 5,000 (e) 4,000 (f) 1,000 (g) 5,000 (h) 4,000 (i) 2,000 (j) 9,000 1. (a) 651 (b) 888 (c) 831 (d) 2,698 (e) 7,933 (f) 9,621 2. (a) 315 (b) 1,594 (c) 2,299 (d) 5,115 (e) 6,006 (f) 8,003 3. (a) 203 459 888 (b) 159 591 951 (c) 9,100 9,700 9,800 (d) 4,519 4,528 4,563 (e) 2,600 3,600 4,900 (f) 3,400 8,500 9,800 (g) 6,730 6,750 6,790 (h) 7,508 7,512 7,580 Topic 1: Place Value Page 6 1. (a) 640 (b) 6,113 (c) 6,118 (d) 6,042 (e) 1,618 (f) 8,632 2. (a) 321 (b) 3,214 (c) 1,350 (d) 3,200 (e) 2,316 (f) 8,381 1. False 2. True 3. False 4. True 5. True 6. False 7. False 8. False 1. (a) Four hundred and fifty-nine (b) Four thousand and sixty (c) Seven thousand (d) Three thousand one hundred and twenty-seven 2. (a) 3,980 (b) 3,984 (c) 3,989 (d) 3,999 (e) 4,005 (f) 4,010 (g) 4,021 Test Yourself Page 7 1. 8,706 2. 5,320 3. 3,075 4. None of these 5. 9,810 6. 6,002 7. 7,010 8. 6,000 9. 4,200 10. 9 people (including the person being served) Topic 2: Addition Page 8 1. (a) 14 (b) 23 (c) 36 2. (a) 12 (b) 22 (c) 38 3. (a) 17 (b) 22 (c) 39 4. (a) 15 (b) 26 (c) 33 5. (a) 13 (b) 25 (c) 34 6. (a) 10 (b) 16 (c) 41 7. (a) 18 (b) 20 (c) 42 8. (a) 23 (b) 27 (c) 45 1. 7,000 2. 8,000 3. 4,000 1. 6,539 2. 6,590 3. 7,127 4. 7,500 5. 7,575 Topic 2: Addition Page 9 1. 6,555 2. 6,448 3. 7,041 4. 7,455 5. 8,288 6. 9,721 7. (a) 5,922 (b) 5,864 (c) 7,742 (d) 6,883 1. Right 2. Wrong 3. Right 4. Right 5. Wrong 6. Wrong 1. 5,000 bubbles 2. 8,000 cans 3. 4,900 songs 4. 2,500 and 3,500 songs Test Yourself Page 10 1. 7,391 2. 6,042 3. None of these 4. 3,710 days 5. 6,605 6. 2,080 pages 7. 15 4 10 7 8 9 13 6 8 11 3 14 5 12 10 9 8. 22 3 17 6 8 15 13 12 7 18 2 21 11 12 16 9 9. 4,000 10. 3,300 magazines Topic 3: Time 1 Page 11 1. (a) 5 past 4 (b) 10 to 9 (c) 25 past 11 (d) 20 to 2 (e) 25 to 1 2. 1. 3. 1. Wednesday 2. 60 hours 3. 11 nights Topic 3: Time 1 Page 12 1. (a) 7:23 (b) 10:50 (c) 3:44 (d) 2:33 2. (a) 7:22 (b) 11:57 (c) 3:45 (d) 8:04 3. (a) 5:51 (b) 10:33 (c) 2:13 (d) 11:59 1. 50 minutes past 8 2. 50 minutes past 6 3. 45 minutes past 1 4. 49 minutes past 4 5. 16 minutes to 7 6. 7 minutes to 1 7. 21 minutes to 2 8. 16 minutes to 7 1. 4 Thursdays 2. 35 minutes 3. 16 times (it appears twice at 3:22) Test Yourself Page 13 1. 19 minutes past 11 2. 3. 8:27 4. 17 minutes to 8 5. 6:15 6. a.m. 7. 27 minutes past 1 8. none of these 9. 5:11 10. 1 hour 38 minutes Topic 4: Lines and Angles Page 14 1. 2. (a) 2 (b) (d) 1. In the middle 2. Top 3. Top Topic 4: Lines and Angles Page 15 1. (a) 12 right angles (b) 7 acute angles (c) 5 obtuse angles 2. Yes there are 3 sets 1. True 2. False 3. False 4. False 5. True 1. 204 Planet Maths Teacher Resources 4th Class

2. North-west 3. (a) Perpendicular (b) Oblique (c) Clockwise (d) Right Test Yourself Page 16 1. 2. 3. 4. obtuse 5. 6. 7. Straight 8. A 9. True 10. E F H L or T Topic 5: Subtraction Page 17 1. (a) 7 (b) 16 (c) 90 2. (a) 7 (b) 14 (c) 88 3. (a) 5 (b) 9 (c) 80 4. (a) 16 (b) 11 (c) 70 5. (a) 9 (b) 17 (c) 13 6. (a) 5 (b) 3 (c) 99 7. (a) 8 (b) 12 (c) 86 1. 5,000 2. 8,000 3. 4,000 4. 6,500 1. (a) 208 (b) 232 (c) 489 (d) 686 (e) 677 (f) 578 2. (a) 3,083 (b) 2,928 (c) 5,074 (d) 4,829 (e) 5,786 (f) 6,437 Topic 5: Subtraction Page 18 1. Add 2. Subtract 3. Add 4. Subtract 1. 312 pieces 2. 280 pieces 1. 68 pages 2. 2,865 bulbs 3. 422 white bulbs Test Yourself Page 19 1. 4,572 2. None of these 3. 6,818 4. 1,625 5. 1,433 passengers 6. 1,188 people 7. 112 pages 8. 2,869 9. 769 10. 1,847 Total: 5,485 Topic 6: Fractions 1 Page 20 1. (a) 5 parts (b) 7 parts (c) 3 parts (d) 7 parts 2. (a) 4 parts (b) 2 legs (c) 5 parts (d) 11 parts 1. 1 2 2. 1 3 3. 3 4 4. 1 4 5. 1 unit Topic 6: Fractions 1 Page 21 2. Quarter 3. Sixth 4. Ninth 5. Third 6. Fifth 7. Eighth 8. Tenth 1. A 7 8 B 10 9 C 1 2 D 11 12 E 2 5 F 1 2 5 G 10 9 2. 3 12 or 1 4 3. (a) 1 4 (b) 1 8 (c) 12 1 (d) 1 6 1 (e) 10 (f) 3 4 Test Yourself Page 22 1. Colour 10 parts 2. Colour 11 parts 3. 12, 1 1 9, 1 3, 7 8 4. 1 5 5. 3 8 6. 1 unit 7. 6 12 8. none of these 9. 7 8 10. 4 5 Topic 7: Graphs Page 23 1. (a) Boeing 737 //// //// 9 Cessna 172 //// 5 Airbus A320 //// 5 Lear Jet //// 4 Helicopter //// // 7 (b) 1. (a) 8 aircraft (b) Saturday (c) Tuesday (d) 37 aircraft (e) 52 aircraft 2. (a) Tuesday (b) 15 planes (c) 47 planes (d) 5 more Topic 7: Graphs Page 24 1. (a) shoes (b) 20 people 2. (a) (b) 64 people Test Yourself Page 25 1. 250 people 2. Friend 3. 450 people 4. Bar to show 500 people 5. Pie chart 6. 9 children 7. 18 children 8. 1 4 9. 10. Topic 8: Multiplication Page 26 1. (a) 72 (b) 36 (c) 63 2. (a) 18 (b) 48 (c) 16 3. (a) 56 (b) 42 (c) 35 4. (a) 54 (b) 45 (c) 72 5. (a) 27 (b) 40 (c) 36 1. (a) 301 (b) 504 (c) 372 (d) 675 (e) 288 (f) 602 (g) 310 (h) 144 (i) 728 (j) 444 2. (a) (i) 24 (ii) 24 (b) (i) 40 (ii) 40 (c) (i) 30 (ii) 30 (d) (i) 60 (ii) 60 3. (a) 160 (b) 240 (c) 150 (d) 630 (e) 560 (f) 490 (g) 540 (h) 300 (i) 720 (j) 210 Topic 8: Multiplication Page 27 1. x 2. 3. + 4. 1. (a) 480 (b) 900 2. (a) 590 (b) 870 3. (a) 730 (b) 580 Sammy 18 squares long Slim 24 squares long Stretch 36 squares long Test Yourself Page 28 1. 1,068 2. 4,662 3. 276 pages 4. 480 seconds 5. 266 players 6. 2,048 haircuts 7. (a) 12 (b) 54 (c) 24 8. (a) 12 (b) 27 (c) 56 9. (a) 42 (b) 8 (c) 0 10. (a) 64 (b) 63 (c) 60 Topic 9: Division 1 Page 29 1. (a) 8 (b) 11 (c) 11 2. (a) 5 (b) 9 (c) 1 3. (a) 7 (b) 9 (c) 7 4. (a) 9 (b) 9 (c) 6 5. (a) 12 (b) 7 (c) 5 1. There are many correct answers 2. 10 3. 1. (a) 19 (b) 18 (c) 12 (d) 28 (e) 49 2. (a) 5 each (b) 47 each (c) 11 each 3. Even numbers Topic 9: Division 1 Page 30 1. Sharing 2. Repeated subtraction 3. Repeated subtraction 4. Multiplication (trick question!) 5. Sharing 1. (a) 8 r 1 (b) 9 r 2 (c) 0 r 5 Planet Maths Teacher Resources 4th Class 205

2. (a) 7 r 4 (b) 6 r 2 (c) 8 r 3 3. (a) 5 r 6 (b) 6 r 3 (c) 8 r 6 4. (a) 0 r 6 (b) 8 r 2 (c) 8 r 8 5. (a) 6 r 1 (b) 10 r 1 (c) 10 r 1 6. (a) 3 r 7 (b) 6 r 2 (c) 6 r 1 7. (a) 4 r 1 (b) 11 r 1 (c) 11 r 1 8. (a) 12 r 1 (b) 5 r 2 (c) 8 r 5 9. (a) 16 r 3 (b) 46 r 1 (c) 20 r 3 (d) 18 r 1 (e) 13 r 5 1. 7, 7 and 6 2. 7, 7, 8 and 8 3. 5, 4, 4, 4, 4 and 4 Test Yourself Page 31 1. (a) 3 (b) 11 (c) 9 (d) 7 2. (a) 2 r 5 (b) 9 r 1 (c) 6 r 4 (d) 5 r 2 3. 3c left over 4. 9 5. 52 6 = 8 r 4 6. 9 trips 7. 9c, 10c, 10c and 10c 8. 8 9. 4 10. 16 Topic 10: Decimals 1 Page 32. 1. 2. (a) Colour 9 squares (b) Colour 90 squares (c) Colour 39 squares (d) Colour 93 squares 1. (a) 0.97 (b) 0.83 (c) 0.3 (d) 0.7 (e) 0.75 (f) 1.1 2. (a) 71 100 (b) 69 100 (c) (e) 1 28 100 (f) 2 59 100 6 100 (d) 9 10 Topic 10: Decimals 1 Page 33 (a) 2.8 (b) 2.84 (c) 2.89 (d) 2.95 (e) 3.01 (f) 3.08 (g) 3.11 1. (a) 0.03 (b) 0.98 (c) 0.44 (d) 0.82 (e) 0.8 (f) 0.4 (g) 0.16 (h) 0.63 (i) 0.58 (j) 0.97 (k) 0.86 (l) 0.01 2. (a) Oliver (b) 0.36 more Test Yourself Page 34 1. 0.83 2. 4.08 3. 2100 6 4. 0.25 5. 1 1 5 or 6 5 6. false 7. 5 tens 1 unit 0 tenths and 8 hundredths 8. 2 9. 1.01 10. None of these Topic 11: Money Page 35 2 1 50c 20c 10c 5c 2c 1c 4.91 2 1 2 1 4.55 2 1 1 4.45 2 2 1 4.23 2 1 1 1 3.99 1 1 1 2 1 2 2.38 1 1 1 1 1 1 1.77 1 1 1 1 1 0.88 1 1 1 1 1 1 0.37 1 1 1 1 1. (a) 2 (b) 0.45 (c) 2.44 (d) 5.65 2. (a) 1 coin (b) Five 50c coins (c) Three 2 coins (d) One 50c and seven 5c coins 3. (a) 4.32 (b) 1.59 (c) 2.88 (d) 6.70 4. (a) 5 notes (b) 2 notes (c) 9 notes (d) 10 notes (e) 15 notes (f) 20 notes 5. (a) 2 notes (b) 4 notes (c) 5 notes (d) 7 notes Topic 11: Money Page 36 1. 9 2. 16.50 3. 5.70 4. 8.50 5. 8.50 6. More than 20 letters will not fit on the cap. 1. 3.75 2. 3.40 3. 16.80 11c Test Yourself Page 37 1. 2 2. 8.07 3. 4.77 4. 14.22 5. 24c 6. 505c 7. 3.01 8. 4 for 32c 9. 1.51 10. 6 Topic 12: Symmetry Page 38 Topic 12: Symmetry Page 39 Test Yourself Page 40 1. Vertical line of symmetry 2. There are many (for example F) 3. There are many 4. 8 5. 1 6. Many 7. Reflection 8. 9. 10. Face Topic 13: Length Page 41 1. (a) 200cm (b) 825cm (c) 716cm 2. (a) 500cm (b) 975cm (c) 308cm 1. (a) 4.85m (b) 6.13m (c) 7.50m (d) 4.66m 2. (a) 4.19m (b) 5.12m (c) 5.79m (d) 4.85m 3. (a) 28cm (b) 19cm (c) 19cm (d) 14cm 4. (a) 46cm (b) 39cm (c) 40cm (d) 300cm Topic 13: Length Page 42 1. A 7.5cm B 11cm C 9cm D 4cm E 14cm F 9cm G 3cm H 5.5cm 2. A 3cm B 5cm C 7cm D 4cm Test Yourself Page 43 1. 90cm 2. 4cm 3. 5.09m 4. 6.84m 5. 6.73m 6. 4.76m 7. 3.45km 8. 14.75m 9. 23cm 10. None of these Topic 14: Long Multiplication Page 44 1. (a) 90 (b) 460 (c) 1,680 2. (a) 110 (b) 650 (c) 2,190 3. (a) 140 (b) 700 (c) 3,680 4. (a) 180 (b) 810 (c) 4,590 5. (a) 230 (b) 930 (c) 6,740 Andy forgot to carry and add 7 in his first line. Emma took the question down wrong. John forgot his zero when multiplying by 60. Evan added incorrectly. 1. (a) 1,720 (b) 3,540 (c) 7,520 (d) 3,780 (e) 2,760 (f) 9,720 2. 640 sweets 3. 1,920 pages 4. 7,200 Topic 14: Long Multiplication Page 45 1. (a) 1,813 (b) 4,558 (c) 6,674 (d) 2,744 (e) 1,242 206 Planet Maths Teacher Resources 4th Class

2. (a) 1,007 (b) 825 (c) 5,494 (d) 1,024 (e) 1,710 (f) 4,958 (g) 1,476 (h) 2,173 (i) 3,480 1. 2,661 people 2. 744 hours 3. POLLYWOOD 1. 8 2. 5 3. 9 4. 6 5. 4 Test Yourself Page 46 1. (a) 40 (b) 81 (c) 48 (d) 63 2. (a) 140 (b) 260 (c) 350 (d) 840 3. (a) 1,590 (b) 2,460 (c) 3,880 (d) 8,930 4. 2,680 5. 4,872 6. 4,758 7. 18 8. 534 batteries 9. 90 minutes 10. 1,620 plants Topic 15: Fractions 2 Page 47 2 dogs, 4 foxes and 3 cows Circle B 1. 9 2. 8 3. 8 4. 7 5. 2 6. 25 Topic 15: Fractions 2 Page 48 1. 25 2. None of these 3. 64 1. (a) 16 (b) 18 2. (a) 12 (b) 50 3. (a) 66 (b) 64 1. 10 1 2. 1 3 3. 1 5 delivered and 4 5 to be delivered G. 1. 2. Test Yourself Page 49 1. (a) 11 (b) 9 (c) 7 (d) 8 2. (a) 15 (b) 14 (c) 21 (d) 72 3. 35 buns 4. 33 empty seats 5. 27 6. None of these 7. 1 10 8. 1 8 9. 36 glasses 10. 64 cones Topic 16: Chance Page 50 Unlikely as it may seem, this story is true! Topic 16: Chance Page 51 Red is likely to be hit around 5 times Yellow is likely to be hit around 10 times Blue is likely to be hit around 5 times 2. Test Yourself Page 52 1. Definitely 2. Likely 3. 10 Times 4. Orange 5. Blue and yellow 6. Even 7. 8. 18 9. 3 10. Consonant Topic 17: Division 2 Page 53 1. (a) 8 (b) 4 (c) 9 (d) 8 (e) 3 (f) 9 (g) 7 (h) 8 2. (a) 12 (b) 8 (c) 12 (d) 7 (e) 7 (f) 6 (g) 12 (h) 8 3. (a) 11 (b) 4 (c) 9 (d) 11 (e) 11 (f) 8 (g) 7 (h) 8 Andy forget to carry the 2: 6 4 = 1 and 2 over Emma forgot the zero: 106 John has no remainder: 139 r 5 Evan forgot the zero: 308 r 1 1. 44 2. 156 3. 133 4. 49 5. 82 6. 51 7. 73 8. 93 Topic 17: Division 2 Page 54 1. Subtract 2. Divide 3. Multiply 4. Addition 1. 86 bundles of pencil cases 2. (a) 86 bundles of copies (b) 204 bundles of rulers (c) 77 bundles of pens (d) 76 bundles of pencils, 4 over 3. 5 might be a good sale price Test Yourself Page 55 1. (a) 3 (b) 9 (c) 11 (d) 9 2. (a) 7 r 1 (b) 5 r 4 (c) 5 r 2 (d) 10 r 1 3. 117 4. 207 5. None of these 6. None of these 7. 200 hot dogs 8. 84 (or 83.34) 9. 41, 41, 42,42, 42 and 42 10. 42 cartons Topic 18: Decimals 2 Page 56 1. (a) 1.4 (b) 0.09 (c) 6.6 2. (a) 1 (b) 0.11 (c) 5.03 3. (a) 1.3 (b) 0.1 (c) 0.28 4. (a) 1.8 (b) 0.11 (c) 7.77 1. (a) 8.1 (b) 8.34 (c) 10.8 (d) 9.27 2. (a) 2.2 (b) 7.37 (c) 8.08 (d) 2.11 3. (a) 2.7 (b) 6.3 (c) 7.6 (d) 8.91 Topic 18: Decimals 2 Page 57 1. 17.28 2. 26.53 3. 14.31 4. 182.4 5. 35.45 6. 0.47 7. 2.34 8. 2.89 9. 0.84 10. 1.04 1. 2.25 2. 0.85kg 1. (a) yes (b) 0.01 2. (a) no (b) 0.06 3. 0.6 4. milk 5. 2.95 Test Yourself Page 58 1. 45.09 2. 3100 8 3. 103.05c 4. 5.1 5. None of these 6. 19.28 7. 0.17m 8. 52.44m 9. 2.50 10. 69.52 Topic 19: Weight Page 59 1. (a) 3,000g (b) 2,130g (c) 8,300g (d) 5,070g (e) 4,600g (f) 7,500g (g) 1,150g (h) 3,750g 2. (a) 4.86kg (b) 3.2kg (c) 2.12kg (d) 7.08kg (e) 1.58kg (f) 4.15kg (g) 8.6kg (h) 2.38kg 3. (a) 3kg (b) 1kg (c) 80kg (d) 80g Topic 19: Weight Page 60 1. (a) cm (b) m (c) g (d) kg (e) (f) m 2. Gross weight includes the weight of the packaging 3. (a) 4kg 800g (b) 2kg 400g (c) 3kg 100g (d) 3kg 49g (e) 6kg 8g (f) 4kg 750g (g) 2kg 340g (h) 0kg 40g 1. 0.8kg 2. 0.58kg 3. 2.15kg 4. 2kg 5. 408g 1. Choose any two coins and place one on each side of the balance. If they don t balance, then you have found the heavy coin. If they balance, then the coin not on the scales is the heavier one 2. No. If she is lucky, she may choose the two coins that balance, in which case the coin she has not chosen is the odd one. But if the odd coin is Planet Maths Teacher Resources 4th Class 207

among the two she has chosen, she cannot tell which of the two is odd, because she does not know if it is heavier or lighter than the others. Test Yourself Page 61 1. 150g 2. 40g 3. 6kg 4. 6kg 47g 5. 36.26kg 6. 1kg 102g 7. 61kg 980g 8. 1.57kg 9. 19.89kg 10. 1kg 29g Topic 20: 2D Shapes Page 62 1. A = star (dodecagon) B = double-sided arrow (decagon) C = cross (dodecagon) D = crescent E = club (shamrock) F = no entry G = regular octagon 2. Club 3. 12, 6 4. Yes 5. All of them 6. Moon (also Red Crescent) 7. Switzerland & Red Cross 8. No entry 9. 8 sides and 8 angles 10. D and E 11. B and C 12. A and G Topic 20: 2D Shapes Page 63 1. 2. Trapezium 1. No 2. Squares 3. Test Yourself Page 64 1. 3 2. Parallelogram 3. 0 4. None of these (square) 5. 6. Draw a shape with 6 sides 7. An oval (ellipse) is a flattened circle. The points of an oval are not all the same distance from the centre. 8. 9. Semi-circle 10. Topic 21: Patterns Page 65 1. 36, 39, 42 2. 64, 72, 80 3. 65, 60, 55 4. 87, 98, 109 1. (a) 11 (b) 15 (c) 43 (d) 8 (e) 111 (f) 125 is missing 2. 3. Topic 21: Patterns Page 66 1. (a) spring (b) Night (c) September (d) 2:59pm (e) Thursday (f) L (g) 999 (h) VIII 2. There are many possible answers: (a) Ice (b) Door (c) 7 (d) Front (e) First (f) Black Test Yourself Page 67 1. 52 2. none of these 3. FFFFFF 4. 6 11 5. Many possible answers. Example 6, 12, 18, 24 6. 10. Topic 22: Length and Perimeter Page 68 1. 128m 2. 156m 3. 184m 4. 252m 5. 288m 6. 132m 7. 280m 8. 300m 1. (a) 32cm (b) 92cm (c) 44cm (d) 152cm (e) 56cm (f) 344cm (g) 76cm (h) 456cm 2. (a) 34cm (b) 204cm (c) 40cm (d) 334cm (e) 50cm (f) 460cm (g) 58cm (h) 600cm 3. 390cm Topic 22: Length and Perimeter Page 69 1. False 2. True 3. True 4. False 5. True 24 trees 1. 768m 2. 34m 3. 31.5m 4. 50.4m 5. 30m 6. 62m 7. 7.5m Answer 1: (a) 16cm and (b) 8cm Answer 2: (a) 12cm and (b) 12cm Test Yourself Page 70 1. 32cm 2. 27cm 3. 42cm 4. 48cm 5. 9cm 6. 20cm 7. 320m 8. 20cm 9. 10. Topic 23: Area Page 71. 1. Cork 2. Oceans 3. Cinema screen 4. Trick question! 5. Lough Neagh 6. Carpet 7. Computer screen 8. Trick question 1. Approx. 20Cm 2 2. Approx. 7Cm 2 3. Approx. 9Cm 2 1. 109m 2 2. 68m 2 Topic 23: Area Page 72 1. 270m 2 2. 45m 2 3. 225m 2 4. (a) 36m 2 (b) 17m 2 (c) 56m 2 (2 sections) (d) 43m 2 (e) 32m 2 (f) 41m 2 5. Rose 6. 255 marigolds 7. (a) 80 (b) 160 ( 240 80) Test Yourself Page 73 1. Page, tabletop, floor, field 2. 1,515m 2 3. Open page of broadsheet newspaper 4. 24m 2 5. 20m 2 6. 7. Square should be 5cm long 8. Rectangle can be 18cm by 1cm or 9cm by 2cm or 6cm by 3cm 9. 126m 2 10. 45m 2 Topic 24: Time 2 Page 74 1. 1:10, 1:20, 1:30, 1:40, 1:50, 2:00, 2:10, 2:20, 2:30, 2:40, 2:50, 3:00, 3:10, 3:20 2. 7:30, 8:35, 9:40, 10:45, 11:50, 12:55, 2:00, 3:05, 4:10, 5:15, 6:20, 7:25, 8:30, 9:35 3. 5 to 10, 1 4 past 10, 25 to 11 4. 16 minutes to 2, 8 minutes to 2, 2 o clock 1. (a) 75 minutes (b) 90 minutes (c) 115 minutes (d) 125 minutes (e) 140 minutes 2. (a) 1 hour 10 minutes (b) 1 hour 15 minutes (c) 1 hour 25 minutes (d) 1 hour 31 minutes (e) 1 hour 43 minutes Topic 24: Time 2 Page 75 1. 3:15, 6:25, 10:45, 8:20, 7:50, 12:10 2. (a) K Nine (b) 40 minutes (c) M Olar (d) 20 minutes (e) 1 hour 15 minutes (f) 9:00 am or coffee / lunch break or after his last client has finished (g) 5:00pm (h) Den Ture Test Yourself Page 76 1. (a) 1 hour 33 minutes (b) 2 hours 5 minutes 2. (a) 85 minutes (b) 135 minutes 3. 3:10pm 4. 24 times 5. 8 hours 15 minutes 6. 4 hours 44 minutes 7. 1 hour 25 minutes 8. 1:55 or earlier 9. 3 1 2 hours 10. Twice 208 Planet Maths Teacher Resources 4th Class

Topic 25: Operations Page 77 31, 30, 32, 26, 34, 30, 34, 32, 30, 28 1. (a) 1400 (b) 700 (c) 1200 (d) 600 2. (a) 9,000 (b) 5,000 (c) 8,000 (d) 3,000 1. 8,739 2. 9,595 3. 8,018 4. 6,192 5. 4,656 6. 6,384 7. 6,825 8. 7,974 9. 5,340 10. 6,351 11. 2,322 12. 5,112 13. 163 14. 123 15. 64 16. 208 17. 99 Topic 25: Operations Page 78 1. 33 2. 180 3. 8 4. 297 5. 42 6. 192 7. 50 8. 159 9. 33 10. 3 11. 28 12. 5 1. 45 2. 13 cards 3. 1,600 chocolates Across 1. 4535 3. 8736 5. 5172 6. 7155 7. 92 8. 6967 10. 7297 12. 911 13. 5678 14. 6785 Down 1. 4751 2. 3870 3. 8461 4. 3145 6. 72 7. 971 9. 6947 11. 9008 Test Yourself Page 79 1. 4,230 pizzas 2. 2,695 passengers 3. 2,250 leaflets 4. 3,120 gb 5. 6,646 6. 1,767 7. None of these (3996) 8. 96 9. 9 10. Topic 26: Capacity Page 80 1. (a) 400m (b) 1200m (c) 150m (d) approx. 850m 1. 5 390m 2. 2 900m 3. 4 190m 4. 8 140m 5. 3 800m 6. 6 8m 7. 2 190m 8. 1 80m 9. 2 250m 10. 3 410m 11. 2 225m 12. 7 310m Topic 26: Capacity Page 81 1. (a) 2,180m (b) 3,123m (c) 8,500m (d) 4,136m (e) 8,059m (f) 6,450m (g) 9,800m (h) 2,002m (i) 6,400m (j) 5,760m (k) 6,060m (l) 6,040m 2. (a) 6.78 (b) 1.11 (c) 3.25 (d) 2.12 (e) 8.9 (f) 5.75 (g) 3.73 (h) 2.2 (i) 6.0 (j) 8.57 (k) 3.33 (l) 4.0 3. (a) 3.83 (b) 4.51 (c) 6.27 (d) 9.77 (e) 9.32 4. (a) 3 330m (b) 5 940m (c) 6 630m (d) 8 5m 5. (a) 12.9 (b) 65.52 (c) 22.76 (d) 69.21 6. (a) 1.84 (b) 1.35 (c) 0.98 (d) 1.6 1. 3 times 2. 5 3. 7 sachets Test Yourself Page 82 1. 6.18 2. 7.65 3. 16.66 4. 1.95 5. 4 80m 6. 7 200m 7. 5 8. 6 650m 9. 7.35 10. 250m Topic 27: Problem-Solving 1 Page 83 1. (a) Water (b) Foot (c) Elbow (d) Quack (e) Big (f) Patient (g) Nurse/doctor (h) Wriggle/glide (i) Cold (j) Fix 2. (a) Odd (b) Divide (c) g (d) Second (e) Multiply (f) 24 (g) 18 (h) 3 (i) 8 (j) 5 Topic 27: Problem-Solving 1 Page 84 1. 11:03am 2. 208 3. 314 4. 23.47 5. 520 6. 8 7. 720 times 8. Jeans 33 Shirts 18 T-Shirts 12 Jumpers 21 Shoes 36 Skirts 24 Hats 16. 50 Socks 3.75 9. 4 packets 10. 1 hour 40 minutes 11. 24m 2 12. 10 C 13. 2m 14. 32 Test Yourself Page 85 1. M and N 2. 244 3. 8m 10cm 4. 44 5. 2 hours 52 minutes 6. 9. 10. 1 2 3 4 1 2 3 4 Topic 28: 3D Shapes Page 86 1. 9 cubes 2. 16 cubes 3. 18 cubes 4. 12 cubes 5. 10 cubes 6. 18 cubes 7. 27 cubes 8. 18 cubes 9. 18 cubes 10. 24 cubes 11. 18 cubes 12. 12 cubes 13. 13 cubes 14. 12 cubes 15. 16 cubes 16. 13 cubes 1. Cube 2. Prism 3. Cuboid 4. Edges 5. 10 6. 5 Topic 28: 3D Shapes Page 87 1. Cone 2. 6 3. Dimension 4. 5. Pyramid Test Yourself Page 88 1. 6 faces 2. 8 edges 3. 10 vertices 4. None of these (cuboid) 5. Cube, cuboid, cylinder 6. Pyramid 7. Triangular prism 8. Hexagonal pyramid 9. 3D shape has height as well as length and width Topic 29: Number Sentences Page 89 1. 8 2. 16 3. 55 4. 12 5. 30 6. 58 7. 11 8. 35 9. 18 10. 15 11. 40 12. 12 13. 18 14. 32 15. 0 1. 9 + 11 + 10 = 30 2. 30 + 31 + 34 = 95 3. (a) 3 (b) 29 (c) 36 (d) 11 (e) 13 (f) 26 (g) 12 (h) 15 (i) 46 (j) 11 (k) 28 (l) 76 4. 52 13 = 39 5. 16 3 + 1 = 14 (*Sarah is also at the party) Planet Maths Teacher Resources 4th Class 209

Topic 29: Number Sentences Page 90 (a) 1 (b) 50c and 50c (c) 50c and 50c (d) 50c, 20c and 5c (e) 1 (f) 50c, 20c and 10c (g) 1 (h) 20c, 20c, 20c and 20c (i) 50c, 20c and 20c 1. Six 5c coins and one 20c coin 2. Eight 10c coins and four 5c coins 3. One 2 coin and six 50c coins (a) 22 + 18 +10 litres (b) 25 + 15 + 10 litres (c) 25 + 14 + 8 litres (d) 31 + 10 + 7 litres (e) 23 + 17 + 9 litres (f) 29 + 18 litres Test Yourself Page 91 1. 7 2. 5 3. 3 4. 6 5. 9 6. None of these (26) 7. 4 and 8 8. 20 + x = 50 Answer is 30 9. 18 7 = 11 birds or 7 + x = 18 birds 10. X x 5 = 30 Answer is 6 sets Topic 30: Problem-Solving 2 Page 93 1. 1834 2. 18 (or 19 if last one leaves at 5:00pm) 3. (a) 1,000 sleepers (b) 2,000 sleepers 4. 12 pennies 5. 2 tickets 6. 3 tickets 7. 17th December 1. Blasts of smoke or could hit head off tunnel! It is unlikely that all carriages had windows 2. 1st class is more comfortable 3. Yes (DART) 4. Less reliable 5. 6. 2 1 2 hours approx. Test Yourself Page 94 1. 35 2. 35 3. 17.50 4. 32 5. 22.50 6. 7.50 7. 4 packets 8. 3:25pm or earlier 9. 194 pages (196 if you include the covers) 10. 48 pages Topic 30: Problem-Solving 2 Page 92 1. 2. 210 Planet Maths Teacher Resources 4th Class