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Replying to card games |
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A reply from Escola Sadako |
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In the observations section, the teachers comment: "if the pupils are able to memorize these pairs of numbers they will be able to use them for other additions". We agree completely, if they have to add 8+6, they will prefer to add 8+2 as they know the result and then add 4. Here are some animations to illustrate it.
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