Double or Nothing

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Posted by saratat | Posted in Uncategorized | Posted on August 8, 2016

Some of the grade 1/2s have been learning their doubles facts by making flip books. How fast can you say your doubles? Can you notice a pattern in the answers? Knowing doubles facts is a strategy that we can use in addition number sentences.

You could practise on your walk or drive to school by asking your child, “What is double 3?” “What is double 8?” “What is double 7?” all the way up to 10. Once they find it really easy and can answer within one second, ask them”What is double 10?” “What is double 40?” “What is double 90?” When they can answer those within one second, ask them “What is double 400?” “What is double 600?” etc.

 

0 + 0 = 0

1 + 1 = 2

2 + 2 = 4

3 + 3 = 6

4 + 4 = 8

5 + 5 = 10

6 + 6 = 12

7 + 7 = 14

8 + 8 = 16

9 + 9 = 18

10 + 10 = 20

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