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

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1 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, (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, (a) 651 (b) 888 (c) 831 (d) 2,698 (e) 7,933 (f) 9, (a) 315 (b) 1,594 (c) 2,299 (d) 5,115 (e) 6,006 (f) 8, (a) (b) (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, (a) 321 (b) 3,214 (c) 1,350 (d) 3,200 (e) 2,316 (f) 8, 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 , , , None of these 5. 9, , , , , people (including the person being served) Topic 2: Addition Page 8 1. (a) 14 (b) 23 (c) (a) 12 (b) 22 (c) (a) 17 (b) 22 (c) (a) 15 (b) 26 (c) (a) 13 (b) 25 (c) (a) 10 (b) 16 (c) (a) 18 (b) 20 (c) (a) 23 (b) 27 (c) , , , , , , , ,575 Topic 2: Addition Page , , , , , , (a) 5,922 (b) 5,864 (c) 7,742 (d) 6, 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 , , None of these 4. 3,710 days 5. 6, ,080 pages , ,300 magazines Topic 3: Time 1 Page (a) 5 past 4 (b) 10 to 9 (c) 25 past 11 (d) 20 to 2 (e) 25 to Wednesday hours nights Topic 3: Time 1 Page (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: minutes past minutes past minutes past minutes past minutes to minutes to minutes to minutes to Thursdays minutes times (it appears twice at 3:22) Test Yourself Page minutes past : minutes to :15 6. a.m minutes past 1 8. none of these 9. 5: hour 38 minutes Topic 4: Lines and Angles Page (a) 2 (b) (d) 1. In the middle 2. Top 3. Top Topic 4: Lines and Angles Page (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 Planet Maths Teacher Resources 4th Class

2 2. North-west 3. (a) Perpendicular (b) Oblique (c) Clockwise (d) Right Test Yourself Page obtuse Straight 8. A 9. True 10. E F H L or T Topic 5: Subtraction Page (a) 7 (b) 16 (c) (a) 7 (b) 14 (c) (a) 5 (b) 9 (c) (a) 16 (b) 11 (c) (a) 9 (b) 17 (c) (a) 5 (b) 3 (c) (a) 8 (b) 12 (c) , , , , (a) 208 (b) 232 (c) 489 (d) 686 (e) 677 (f) (a) 3,083 (b) 2,928 (c) 5,074 (d) 4,829 (e) 5,786 (f) 6,437 Topic 5: Subtraction Page Add 2. Subtract 3. Add 4. Subtract pieces pieces pages 2. 2,865 bulbs white bulbs Test Yourself Page , None of these 3. 6, , ,433 passengers 6. 1,188 people pages 8. 2, ,847 Total: 5,485 Topic 6: Fractions 1 Page (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 unit Topic 6: Fractions 1 Page Quarter 3. Sixth 4. Ninth 5. Third 6. Fifth 7. Eighth 8. Tenth 1. A 7 8 B 10 9 C 1 2 D E 2 5 F G or (a) 1 4 (b) 1 8 (c) 12 1 (d) (e) 10 (f) 3 4 Test Yourself Page Colour 10 parts 2. Colour 11 parts 3. 12, 1 1 9, 1 3, unit none of these Topic 7: Graphs Page (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 (a) shoes (b) 20 people 2. (a) (b) 64 people Test Yourself Page people 2. Friend people 4. Bar to show 500 people 5. Pie chart 6. 9 children children Topic 8: Multiplication Page (a) 72 (b) 36 (c) (a) 18 (b) 48 (c) (a) 56 (b) 42 (c) (a) 54 (b) 45 (c) (a) 27 (b) 40 (c) (a) 301 (b) 504 (c) 372 (d) 675 (e) 288 (f) 602 (g) 310 (h) 144 (i) 728 (j) (a) (i) 24 (ii) 24 (b) (i) 40 (ii) 40 (c) (i) 30 (ii) 30 (d) (i) 60 (ii) (a) 160 (b) 240 (c) 150 (d) 630 (e) 560 (f) 490 (g) 540 (h) 300 (i) 720 (j) 210 Topic 8: Multiplication Page x (a) 480 (b) (a) 590 (b) (a) 730 (b) 580 Sammy 18 squares long Slim 24 squares long Stretch 36 squares long Test Yourself Page , , pages seconds players 6. 2,048 haircuts 7. (a) 12 (b) 54 (c) (a) 12 (b) 27 (c) (a) 42 (b) 8 (c) (a) 64 (b) 63 (c) 60 Topic 9: Division 1 Page (a) 8 (b) 11 (c) (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 (a) 19 (b) 18 (c) 12 (d) 28 (e) (a) 5 each (b) 47 each (c) 11 each 3. Even numbers Topic 9: Division 1 Page 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

3 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 , 7 and , 7, 8 and , 4, 4, 4, 4 and 4 Test Yourself Page (a) 3 (b) 11 (c) 9 (d) 7 2. (a) 2 r 5 (b) 9 r 1 (c) 6 r 4 (d) 5 r c left over = 8 r trips 7. 9c, 10c, 10c and 10c Topic 10: Decimals 1 Page (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) (a) (b) (c) (e) (f) (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) (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) (a) Oliver (b) 0.36 more Test Yourself Page or false 7. 5 tens 1 unit 0 tenths and 8 hundredths None of these Topic 11: Money Page c 20c 10c 5c 2c 1c (a) 2 (b) 0.45 (c) 2.44 (d) (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) (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 More than 20 letters will not fit on the cap c Test Yourself Page c c for 32c Topic 12: Symmetry Page 38 Topic 12: Symmetry Page 39 Test Yourself Page Vertical line of symmetry 2. There are many (for example F) 3. There are many Many 7. Reflection Face Topic 13: Length Page (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 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 cm 2. 4cm m m m m km m 9. 23cm 10. None of these Topic 14: Long Multiplication Page (a) 90 (b) 460 (c) 1, (a) 110 (b) 650 (c) 2, (a) 140 (b) 700 (c) 3, (a) 180 (b) 810 (c) 4, (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, sweets 3. 1,920 pages 4. 7,200 Topic 14: Long Multiplication Page (a) 1,813 (b) 4,558 (c) 6,674 (d) 2,744 (e) 1, Planet Maths Teacher Resources 4th Class

4 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, ,661 people hours 3. POLLYWOOD Test Yourself Page (a) 40 (b) 81 (c) 48 (d) (a) 140 (b) 260 (c) 350 (d) (a) 1,590 (b) 2,460 (c) 3,880 (d) 8, , , , batteries minutes 10. 1,620 plants Topic 15: Fractions 2 Page 47 2 dogs, 4 foxes and 3 cows Circle B Topic 15: Fractions 2 Page None of these (a) 16 (b) (a) 12 (b) (a) 66 (b) delivered and 4 5 to be delivered G Test Yourself Page (a) 11 (b) 9 (c) 7 (d) 8 2. (a) 15 (b) 14 (c) 21 (d) buns empty seats None of these glasses 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 Definitely 2. Likely Times 4. Orange 5. Blue and yellow 6. Even Consonant Topic 17: Division 2 Page (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 Topic 17: Division 2 Page Subtract 2. Divide 3. Multiply 4. Addition 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 (a) 3 (b) 9 (c) 11 (d) 9 2. (a) 7 r 1 (b) 5 r 4 (c) 5 r 2 (d) 10 r None of these 6. None of these hot dogs (or 83.34) 9. 41, 41, 42,42, 42 and cartons Topic 18: Decimals 2 Page (a) 1.4 (b) 0.09 (c) (a) 1 (b) 0.11 (c) (a) 1.3 (b) 0.1 (c) (a) 1.8 (b) 0.11 (c) (a) 8.1 (b) 8.34 (c) 10.8 (d) (a) 2.2 (b) 7.37 (c) 8.08 (d) (a) 2.7 (b) 6.3 (c) 7.6 (d) 8.91 Topic 18: Decimals 2 Page kg 1. (a) yes (b) (a) no (b) milk Test Yourself Page c None of these m m Topic 19: Weight Page (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 (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 kg kg kg 4. 2kg g 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

5 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 g 2. 40g 3. 6kg 4. 6kg 47g kg 6. 1kg 102g 7. 61kg 980g kg kg 10. 1kg 29g Topic 20: 2D Shapes Page 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 Trapezium 1. No 2. Squares 3. Test Yourself Page Parallelogram None of these (square) 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 Semi-circle 10. Topic 21: Patterns Page , 39, , 72, , 60, , 98, (a) 11 (b) 15 (c) 43 (d) 8 (e) 111 (f) 125 is missing Topic 21: Patterns Page (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 none of these 3. FFFFFF Many possible answers. Example 6, 12, 18, Topic 22: Length and Perimeter Page m m m m m m m m 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 cm Topic 22: Length and Perimeter Page False 2. True 3. True 4. False 5. True 24 trees m 2. 34m m m 5. 30m 6. 62m m Answer 1: (a) 16cm and (b) 8cm Answer 2: (a) 12cm and (b) 12cm Test Yourself Page cm 2. 27cm 3. 42cm 4. 48cm 5. 9cm 6. 20cm m 8. 20cm Topic 23: Area Page 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 m m 2 Topic 23: Area Page m m m 2 4. (a) 36m 2 (b) 17m 2 (c) 56m 2 (2 sections) (d) 43m 2 (e) 32m 2 (f) 41m 2 5. Rose marigolds 7. (a) 80 (b) 160 ( ) Test Yourself Page Page, tabletop, floor, field 2. 1,515m 2 3. Open page of broadsheet newspaper 4. 24m m Square should be 5cm long 8. Rectangle can be 18cm by 1cm or 9cm by 2cm or 6cm by 3cm m m 2 Topic 24: Time 2 Page :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: :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: to 10, 1 4 past 10, 25 to 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 :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 (a) 1 hour 33 minutes (b) 2 hours 5 minutes 2. (a) 85 minutes (b) 135 minutes 3. 3:10pm times 5. 8 hours 15 minutes 6. 4 hours 44 minutes 7. 1 hour 25 minutes 8. 1:55 or earlier hours 10. Twice 208 Planet Maths Teacher Resources 4th Class

6 Topic 25: Operations Page 77 31, 30, 32, 26, 34, 30, 34, 32, 30, (a) 1400 (b) 700 (c) 1200 (d) (a) 9,000 (b) 5,000 (c) 8,000 (d) 3, , , , , , , , , , , , , Topic 25: Operations Page cards 3. 1,600 chocolates Across Down Test Yourself Page ,230 pizzas 2. 2,695 passengers 3. 2,250 leaflets 4. 3,120 gb 5. 6, , None of these (3996) Topic 26: Capacity Page (a) 400m (b) 1200m (c) 150m (d) approx. 850m m m m m m m m m m m m m Topic 26: Capacity Page (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) (a) 3.83 (b) 4.51 (c) 6.27 (d) 9.77 (e) (a) 3 330m (b) 5 940m (c) 6 630m (d) 8 5m 5. (a) 12.9 (b) (c) (d) (a) 1.84 (b) 1.35 (c) 0.98 (d) times sachets Test Yourself Page m m m m Topic 27: Problem-Solving 1 Page (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 :03am times 8. Jeans 33 Shirts 18 T-Shirts 12 Jumpers 21 Shoes 36 Skirts 24 Hats Socks packets hour 40 minutes m C 13. 2m Test Yourself Page M and N m 10cm hours 52 minutes Topic 28: 3D Shapes Page cubes cubes cubes cubes cubes cubes cubes cubes cubes cubes cubes cubes cubes cubes cubes cubes 1. Cube 2. Prism 3. Cuboid 4. Edges Topic 28: 3D Shapes Page Cone Dimension Pyramid Test Yourself Page faces 2. 8 edges 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 = = (a) 3 (b) 29 (c) 36 (d) 11 (e) 13 (f) 26 (g) 12 (h) 15 (i) 46 (j) 11 (k) 28 (l) = = 14 (*Sarah is also at the party) Planet Maths Teacher Resources 4th Class 209

7 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) litres (b) litres (c) litres (d) litres (e) litres (f) litres Test Yourself Page None of these (26) 7. 4 and x = 50 Answer is = 11 birds or 7 + x = 18 birds 10. X x 5 = 30 Answer is 6 sets Topic 30: Problem-Solving 2 Page (or 19 if last one leaves at 5:00pm) 3. (a) 1,000 sleepers (b) 2,000 sleepers 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 hours approx. Test Yourself Page packets 8. 3:25pm or earlier pages (196 if you include the covers) pages Topic 30: Problem-Solving 2 Page Planet Maths Teacher Resources 4th Class

Sample Pages. out of 17. out of 15. a $1.15 b $0.85. a 4280 b 2893 c 724. a Which of these are odd? b Which of these are even?

Sample Pages. out of 17. out of 15. a $1.15 b $0.85. a 4280 b 2893 c 724. a Which of these are odd? b Which of these are even? 1:1 out of 15 1:2 out of 17 7 + 8 13 4 12 9 3 3 4 2 9 plus 5. 8 + 6 4 groups of 5. 1 8 + 1 1 1 5 4 12 + 7 9 2 16 + 4 7 4 10 7 17 subtract 7. 11 6 20 minus 12. 6 7 + 2 2 7 9 4 3 Write these numbers on the