1) 12 a) Round down to 10 b) Round up to 20 2) 9 a) Round up to 10 b) Round down to 0 3) 18 a) Round down to 10 b) Round up to 20 4) 2 a) Round down to 0 b) Round up to 10 5) 15 a) Round down to 10 b) Round up to 20

Group 1: Rounding numbers to its nearest tens- Grade 1

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