© Hamilton Trust Keeping Up Term 3 Week 3 Day 1 Objective: Subtract one, two or three-digit numbers by counting back.

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Presentation transcript:

© Hamilton Trust Keeping Up Term 3 Week 3 Day 1 Objective: Subtract one, two or three-digit numbers by counting back.

© Hamilton Trust Keeping Up Term 3 Week 3 Day 1 Counting back to subtract numbers looks like this: < < << < < -7

© Hamilton Trust Keeping Up Term 3 Week 3 Day 1 Write 523 at the top of a sheet of paper. Subtract 6 and write the new number underneath. Keep subtracting 6… How low can you go in 2 minutes?!

© Hamilton Trust Keeping Up Term 3 Week 3 Day 1 Counting back to subtract a 2-digit number: 310 – 43 = < < 270

© Hamilton Trust Keeping Up Term 3 Week 3 Day 1 Counting back to subtract a 3-digit number: 748 – 201 = < < 548

© Hamilton Trust Keeping Up Term 3 Week 3 Day 1 Counting back to subtract a 3-digit number: 835 – 199 = < <

© Hamilton Trust Keeping Up Term 3 Week 3 Day 1 It’s drill time again… Aim to be a subtraction sergeant!

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