﻿ Check Calculations Year 2 Addition and Subtraction Learning Video Clip | Classroom Secrets

# Check Calculations Year 2 Addition and Subtraction Learning Video Clip ## Step 2: Check Calculations Year 2 Addition and Subtraction Learning Video Clip

Cleo visits Victorian London with her friend Blake. Help them to check some calculations along the way.

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1. What calculations could they do to check if Judy will have enough loaves of bread?
Discuss the different methods that can be used for these calculations and how they could be checked. Discuss if more than one method could be used. What could the different methods be?
8 + 9 = 17 which is less than 20 so the baker will have enough loaves of bread.

2. What calculation could Blake do to check if Cleo’s is correct?
Discuss what the inverse operation would be. Discuss what Blake’s calculation should be.
20 – 4 = 16. Cleo has done the wrong calculation. The maid does not have enough pennies to buy the cheese.

3. Help Cleo to check if Blake’s answer is correct.
Discuss which method Cleo should use to check Blake’s calculation. Discuss if there is more than one possible answer. How could Cleo check those answers? This question is open-ended for the children to explore.
14 + 3 = 17 Other possible calculations include 18 – 14 = 4, 19 – 14 = 5, 20 – 14 = 6

Optional discussion points:
Could any equipment be used to help check the calculations?

National Curriculum Objectives

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