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4 votes
Sue wants to use mental math to solve 7 times 53. What is an expression that she can use?

2 Answers

6 votes
multiplication.......................
User Samuel O
by
8.7k points
2 votes
53 = (10 x 5) + 3

7 x 53 = (7 x 5 x 10) + (7 x 3)

7 x 5 x 10 = 35 x 10 = 350
7 x 3 = 21

350 + 21 = 371
User Shanu Gupta
by
7.2k points