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lO3x12,而简便运算? 125x24x12的简便计算

lO3x12,而简便运算?125x24x12的简便计算

125X12的简便计算?

乘法结合律:

125×12

=125×4×3

=500×3

=1500

103x12的简便运算?

103x12

=(100+3)x12

=100x12+3x12

=1200+36

=1236

103x12用简便运算计算

   103×12

=100×12+3×12

=1200+36

=1236

125×12用简便计算怎么算

125*12

=125*4*3

=500*3

=1500