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Kadyn
24 June, 13:46
Explain how use mental math in 17+38
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Diana
24 June, 15:04
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You would first look at the tens place numbers; 10 and 30. and add them together making 40. after that you'd take the ones places and add them together; 7 and 8. add those together and you'd get 15. to finish you just need to add the two numbers together 40 and 15.
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