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Calculation Policies KS2
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Objectives 1. Understand the difference between each year group expectations. 2. Understand the progression of skills and 3. Consider giving children the freedom to select the most appropriate method.
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Addition (Year 3) Extended column method for addition…
Number line to add 2 digit number, partitioned into tens and ones. Extended column method for addition…
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Compact column method for addition
Addition (Year 4) Compact column method for addition
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Addition (Year 5)
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Addition (Year 6 ) Children can fill empty columns with zeros, acting as a place holder.
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Subtraction (Year 3) Finding the ‘difference’ between numbers by counting up…
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Subtraction (Year 4) 845 – 798=
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Subtraction (Year 4) 845 – 798=
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Subtraction (Year 5) Subtracting decimals with more than one decimal place and with differing numbers of digits.
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Subtraction (Year 6) Children continue to: 1. Find difference between numbers mentally through use of a number line. 2. Use the inverse operation to check calculations. 3. Use the column subtraction method with increasingly complex calculations and questions presented in context.
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Multiplication (Year 3)
13 x 3 = 10 x 3 = 30 3 x 3 = 9 = 39
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Multiplication (Year 3)
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Multiplication (Year 4)
‘Multiply a 2 or 3-digit number by a 1-digit number…
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Multiplication (Year 4)
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Multiplication (Year 5)
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Multiplication (Year 6)
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Division (Year 3) How many 3s in 39?
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Division (Year 4) Number line that includes remainders
Short division method but with NO remainders
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Division (Year 5) 964 people went to a baseball stadium, each row could seat 7 people. How many rows were needed altogether? 138 rows as 137 rows would mean 5 people wouldn’t have a seat!
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Division (Year 6)
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What can we do to support our children?
Secure with times tables (up to 12 x 12 by end of year 4). Expose children to missing number problems ___ x 6 = = ___ x 6 Expose children to alternative vocabulary. Example: Addition = add, altogether, combine. Help understand the commutative law: 2x 6 = 12 which is the same as 6 x 2 =12 Help understand the inverse operation: 2x 6 =12, therefore 12 ÷ 2 = 6 and 12 ÷ 6 = 2
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