Tuesday, 29 August 2017

The new group Toru

Enjoying learning our new strategies together.




3 comments:

  1. I learnt to double ie 19+19=38
    I first got 19 blocks and then added 19 more.
    Then I learnt another way:
    20 + 20 = 40
    40 - 2 = 38 (We add to add 1 more to make 19 two times, so need to take 2 away).

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  2. My strategy for 19 + 19 = ?
    20 + 20 = 40
    40 - 2 = 38

    If we don't take away 2 it will be 40 not 38.
    We have to add 1 more to make 20. Because 19 + 1 = 20.

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  3. I learnt to use my tens for counting. For an example: 10 + 10 = ? easy way. 10 20 it = 20. hard way. 12345678910/11 12 13 14 15 16 17 18 19 20 it= 20







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