The Eliot Bank and Gordonbrock Schools Federation. Calculation Policy. Addition Subtraction Multiplication Division Take away practically

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Reception Counting to make total practically Take away practically Drawing objects Drawing objects and crossing out Tallying/mark making Using a completed number track to count on. Using a completed number track to count back. Grouping objects. Eg: 2 2 2 2 = 8 Sharing and grouping objects. How many groups of 2 in 6? 2 3 4 5 6 7 8 9 2 3 4 5 6 7 8 9 0 4 groups of 2 = 8 = 3 Page of 7

Year Using a completed number line to count on. Using a completed number line to count back. Grouping pictorially. Sharing and Grouping pictorially. 2 2 2 2 = 8 4 groups of 2 = 8 Sharing 2 sweets between 4 How many do each have? 4 x 2 2 x 4 COUNT IN 2s, 5s AND 0s. COUNT IN 2s, 5s AND 0s. with teacher support Record using arrays. 6 x 2 = 2 x 6 = with teacher support Understand division as GROUPING and link to times tables: 2 split into GROUPS OF 2 3 = 4 (use 3 times table) 2 2 = 6 (use 2 times table) 2 4 = 3 (use 4 times table) Page 2 of 7

Year 2 Using empty number line to count back in ones. Using empty number line to count on in ones. 8-3 - - - Record using arrays. 6 x 2 = Understand division as GROUPING and link to times tables: 2 split into GROUPS OF 46 3 5 6 7 8 2 x 6 = 2 3 = 4 (use 3 times table) 2 2 = 6 (use 2 times table) 2 4 = 3 (use 4 times table) Using empty number line to count on ten then multiples of 0. Using empty number line to back ten then multiples of 0. -0 35 45 Year 2 continued on next page Page 3 of 7

Year 2 Subtract 9 by subtracting 0 and adjusting: 45 9 = 36 Add 9 by adding 0 & adjusting: 42 9 = 5-0 Multiplication as repeated addition using completed number line: 5 x 2 x2 2x2 3x2 4x2 5x2 Division as grouping: 0 2 how many groups of 2 make 0? (using completed number line) x2 2x2 3x2 4x2 5x2 35 36 45 Partition numbers to add tens, then units: 53 36 = 89 Partition numbers to subtract tens then units: 28 7 = LEARN TIMES TABLES 2 x 5 x 0 x LEARN DIVISION FACTS FOR 2 x 5 x 0 x Partition units, looking for jumps to tens barriers: 625 49 = 673 Partition units, looking for jumps to tens barriers: 74 27 = 47 Where there is a SMALL difference between the 2 numbers, count on to find the difference: 70 58 = 2 2 0 Page 4 of 7

Year 3 Expanded column addition **Always start with units** 625 48 = 673 Expanded column Multiplication as repeated addition using subtraction no stealing **Always start with units** an empty number line: 5 x 2 Division as grouping: 0 2 how many groups of 2 make 0? (using empty number line) 587 475 = 062 Expanded column subtraction with stealing **Always start with units**steal only for units, then tens, then both**extend to thousands etc** IMPORTANT: In order to move on to the next stage, children MUST be able to )multiply any number by 0 2)multiply any number by 00 3)multiply digit by a multiple of 0 (5 x 30) and multiple of 00 (4 x 600) 4)Multiply multiples of 0 (20 x 50) Partitioning to multiply **Column addition to find the total** Finding remainders: 6 5 = 3 r x 5 2 x 5 3x 5 r 754 86 = 668 LEARN DIVISION FACTS FOR 3 x 4x 8x Column addition **Always start with units**carry at the top - 587 475 = 062 LEARN TIMES TABLES 3 x 4x 8x Page 5 of 7

Year 4 Column addition **Always start with units**carry at the top**ext to thousands etc** Column subtraction **Always start with units**steal only for units, then tens, then both**extend to thousands Grid Method TU x U 23 x 8 = 84 Chunking on a number line 587 475 = 062 etc**extend to decimals** - Grid Method HTU x U 235 x 8 = 880 Extend to decimals 24.9 7.25 = 32.5 IMPORTANT: Do not use columns to subtract from a number with lots of zeros or when numbers are close together teach the children to let the numbers determine the best method: 009 998 = Chunking on a number line with remainders Grid Method TU x TU 56 x 27 = 52 IMPORTANT: Children must understand how to insert zeros as place holders when dealing with decimal numbers. LEARN DIVISION FACTS FOR 6 x 7x9XX2X LEARN TIMES TABLES 6 x 7x9XX2X Page 6 of 7

Year 5 & 6 Short Multiplication **Remember to carry at the top** Step = TU x U Step 2 = HTU x U Step 3 = TU x TU 34 x 5 = 70 Chunking vertically without then with remainders. Family of Facts: 20 x 7 = 40 0 x 7 = 70 5 x 7 = 25 2 x 5 = 0 x 5 = 5 Long Division (bus stop method) 8764 4 = 29 56 x 27 = 52 546 3 = 7r9 Short Division (bus stop method) 9 7 2 9 2 General Rule: When dividing by a single digit = bus stop When dividing by a double digit = vertical chunking then long division Page 7 of 7