Unknown quantities in number sentences involving addition and subtraction
Chapters
Focus of this video lesson is to find unknown amounts in number sentences consisting of summation and subtraction and identify equivalent number sentences involving addition and subtraction
Elaborations
- writing number sentences to represent and answer questions such as: ‘When a number is added to 23 the answer is the same as 57 minus 19. What is the number?’
- using partitioning to find unknown quantities in number sentences
Author: Subject Coach
Added on: 26th Oct 2016
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Learning Aim
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Finding unknown quantities in number sentences involving addition and subtraction and identify equivalent number sentences involving addition and subtraction
Elaborations
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- writing number sentences to represent and answer questions such as: ‘When a number is added to 34 the answer is the same as 64 minus 11. What is the number?’
- using partitioning to find unknown quantities in number sentences
Transcript
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Not available