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Lesson details

Key learning points

  1. In this lesson, we will solve subtraction equations using different strategies.

Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

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3 Questions

Q1.
What would the best strategy be to answer this question: 29 + 30 = ?
Correct answer: Near doubles
Partitioning
Q2.
Which of the below shows 34 + 32 partitioned correctly?
Correct answer: 30 + 4 and 30 + 2
30 + 6 and 30 + 1
34 and 30 + 2
Q3.
27 + 30 =
37
Correct answer: 57
67

3 Questions

Q1.
Using the strategy, count back in tens, complete the equation: 43 - 20 =
20
Correct answer: 23
43
Q2.
59 + ? = 72
Correct answer: 13
50
7
Q3.
? = 32 - 20
Correct answer: 12
20
32

Lesson appears in

UnitMaths / Exploring calculation strategies