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Proposed version

Master the Curriculum

Estimate and use inverse operations to check answers to a calculation

Year 4Working Without Worksheets5 resources teach this

What this means, in plain words

Inverse operations undo each other: addition and subtraction, multiplication and division.

Estimating means reaching an answer close enough to be useful, before or instead of calculating it exactly.

Tagged to Year 3 and Year 4 in working without worksheets. 5 resources in the library teach it.

The small steps it breaks into

Her own lesson numbering, in teaching order. A number appears twice where she teaches the objective in two separate blocks, so both are shown.

  1. Estimate Answers Using Rounding to the Nearest 10, 100 or 1,000Lesson 1
  2. Check Answers Using the InverseLesson 2
  3. Use Inverse Operations to Check AnswersLesson 2

The resources that teach it

Every one differentiated three ways, editable in PowerPoint.

Working Without Worksheets

Y4

L1 Estimate Answers Using Rounding to the Nearest 10, 100 or 1,000

masterthecurriculum.co.uk
4.857 reviews
Included with membership

Working Without Worksheets

Y4

L2 Check Answers Using the Inverse

masterthecurriculum.co.uk
4.258 reviews
Included with membership

Working Without Worksheets

Y3

L2 Use Inverse Operations to Check Answers

masterthecurriculum.co.uk
4.825 reviews
Included with membership

Addition & Subtraction

Y3

Year 3: Addition & Subtraction – Estimate the answer to a calculation and use inverse operations to check answers fluency and reasoning booklet

masterthecurriculum.co.uk
Included with membership
Editable worksheetsWord and PowerPoint, so you can change anythingWhite Rose supportingFollows the small steps you already plan fromDownloadable lesson plansPlanning, slides and worksheets for every stepReasoning and problem solvingBuilt into every step, not sold separately

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