■ ● If two towers have a 26 − =16; ■ difference of 3 cubes, − 40 = 28; ■ ▲ how tall might they − = 40 be? ● You have 70p and spend 30p, what do you have left? What number sentence would you write? Subtraction Stage 3 – Subtract numbers using concrete objects, pictorial representations, and mentally, including: two digit number and ones A two digit number and tens A two-digit numbers Two NB Ensure that children are confident with the methods outlined in the previous stage’s guidance before moving on. Counting back using an empty number line within 100, in ones… 34 - 6 = in tens 58 30 = 28 28 …and – Use in conjunction with a 100 square to show jumps of tens. Subtraction, using partitioning, on an empty number line: 76 45 = 31 – -1 -1 -1 -1 -1 -10 -10 -10 -10 - 36 46 56 66 76 31 32 33 34 35 Use in conjunction with a 100 square to show jumps of tens and ones. If children are confident, use more efficient jumps… -5 -40 31 36 76 Progression in subtraction autumn spring summer ● You have 57p in your ● What is 35 take ● There are 20 pegs on a coat hanger. pocket and spend 49p, how away 8? Take 7 from 14 are showing. How many are much do you have left? 42.Subtract 40 from hidden? What number sentences ● There were 24 people on a 95. could we write? bus. There are now only ● What must I take ● I think of a number. I add 45.The
● If two towers have a difference of 3 cubes, how tall might they be? 26 − ■ =16; ■ − 40 = 28; ■ − ▲ = 40 ● You have 70p and spend 30p, what do you have left? What number sentence would you write? Subtraction – Stage 3 Subtract numbers using concrete objects, pictorial representations, and mentally, including: A two digit number and ones A two digit number and tens Two two-digit numbers NB Ensure that children are confident with the methods outlined in the previous stage’s guidance before moving on. Counting back using an empty number line within 100, in ones… 34 - 6 = 28 …and in tens 58 – 30 = 28 Use in conjunction with a 100 square to show jumps of tens. Subtraction, using partitioning, on an empty number line: 76 – 45 = 31 -1 -1 -1 -1 -1 -10 -10 -10 -10 - 31 32 33 34 35 36 46 56 66 76 Use in conjunction with a 100 square to show jumps of tens and ones. If children are confident, use more efficient jumps… -5 -40 31 36 76 Progression in subtraction autumn spring summer ● You have 57p in your pocket and spend 49p, how much do you have left? ● There were 24 people on a bus. There are now only ● What is 35 take away 8? Take 7 from 42.Subtract 40 from 95. ● What must I take ● There are 20 pegs on a coat hanger. 14 are showing. How many are hidden? What number sentences could we write? ● I think of a number. I add 45.The