Question

3.56乘38.5加零点七乘三百五十六加9.15乘三十五点六的简便运算知道回复

3.56乘38.5加零点七乘三百五十六加9.15乘三十五点六的简便运算知道回复

Answer 1

3.56×38.5+0.7×356+9.15×35.6
=3.56×38.5+70×3.56+91.5×3.56
=3.56×（38.5+70+91.5）
=3.56×200
=712

Answer 2

3.56×38.5+0.7×356+9.15×35.6
=35.6×3.85+7×35.6+9.15×35.6
=35.6×(3.85+7+9.15)
=35.6×20
=712