7 - 3 more than 4, 9 - difference of 15 and 6, 4 - 11 less than 7, 16 - sum of 11 and 5, 13 - sum of 7 and 6, 25 - sum of 10 and 15, 8 - 12 subtracted by 4, 14 - 8 increased by 6, 17 - 9 added by 8, 10 - 18 decreased by 8,

Drill_ addition&subtraction

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