Adding and subtracting multiples of ten
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Lesson details
Key learning points
- In this lesson, we will use our knowledge of number bonds within ten to begin deriving facts when adding and subtracting multiples of ten within 100.
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4 Questions
Q1.
What known fact can help us work out 68 - 5?
6 - 5
6 + 5
8 + 5
Q2.
What known fact can help us work out 45 - 3?
3 - 5
3 + 5
5 + 3
Q3.
What is 37 - 5?
31
33
35
Q4.
What is 32 + 6?
36
37
39
4 Questions
Q1.
If I know 6 - 5 = 1. Then I know 60 - 50 = ____
100
20
30
Q2.
If I know 7 - 3 = 4. Then I know 70 - 30 = ____
20
30
50
Q3.
What is 30 + 50?
100
70
90
Q4.
Sixty subtract forty is equal to....
Fifty
Forty
Thirty