Using doubles to multiply
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Lesson details
Key learning points
- In this lesson, we will look at the effect of doubling a number on the factors of that number, and investigate how the size of the number changes proportionally as we keep doubling.
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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5 Questions
Q1.
double 2 x 3 = 6 is
2 x 2 = 4
3 x 3 = 9
6 x 6 = 36
Q2.
double 4 x 4 = 16 is
16 x 1 = 16
2 x 4 = 8
4 x 10 = 40
Q3.
To solve 11 x 6 I can use
11 - 6
11 + 6
11 x 11
Q4.
To solve 8 x 8 we can use
1 x 8
3 x 8
8 - 8
Q5.
Which times-table can we double to find our 12s?
2
4
8