Answers

2014-10-29T18:27:00+08:00
Three times the sum of two numbers 3 X (x + y)
nine less than 54 plus a number times two (54-9)+(2x)
72 times 10 minus 2 72 X (10-2)
five times five plus seven times two (5 X 5)+(7 x 2) or
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