Question

Sue wants to use mental math to find 7x53 write an expression she could use

Answer 1

7 x 53 =

7 x 3 = 21


7 x 50 =
7 x 10 = 70
70 x 5 = 350


350 + 21 + 371

Answer 2

an expression that see can use is 7×50+7×3