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A. Multiplying by 375 is derived from Multiplying by 125. Since 375 = 1000 x (3/8) you can divide by 8, multiply by 3, and then multiply by 1000.
Ex [1] 168 x 375 =_________.
a) 168 ÷ 8 = 21.
b) 21 x 3 = 63.
c) 63 x 1000 = 63000.
d) The answer is 63000.
Ex [2] 424 x 375 =_________.
a) 424 ÷ 8 = 53.
b) 53 x 3 = 159.
c) 53 x 1000 = 159000.
d) The answer is 159000.