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Doubles

Addition

11 cards·by tbunce

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Where this fits

Addition strategies: 11+.., 12+..., etc.

Addition strategies: almost neighbours

Addition strategies: 18-20

Addition strategies: 15+..., to 17+...

Addition strategies: making 10

Tim's box - CP - DOUBLE 0+0 A 10+10

A-level calculus

6

12

7

14

90

180

9

18

30

60

3

6

40

80

15

30

2

4

20

40

75

150