Question

3.42×76.3+76点3×57.6+9点18×203.7的简便运算？

Answer 1

我们可以使用分配律和结合律来简化这个表达式，具体地：
3.42×76.3+76.3×57.6+9.18×203.7
= 3.42×76.3 + 76.3×57.6 + 9.18×200 + 9.18×3.7 （把203.7分解为200+3.7）
= 76.3 × (3.42 + 57.6) + 9.18 × 200 + 9.18 × 3.7 （合并同类项）
= 76.3 × 61.02 + 1836 + 33.726 （计算结果）
= 4653.926
因此，3.42×76.3+76.3×57.6+9.18×203.7的简便运算结果为4653.926。

Answer 2

3.42×76.3+76.3×57.6+9.18×203.7
=76.3×(3.42+57.6)+9.18×203.7
=76.3×61.02+9.18×203.7
=4655.826+1869.966
=6525.792

Answer 3

3.42×76.3+76.3×57.6+9.18×203.7
=76.3×（3.42+57.6）+9.18×203.7
=76.3×61.02+3.06×3×203.7
=76.3×61.02+30.6×61.11
=61.02×（76.3+30.6）+0.09×30.6
=61.02×106.9+2.754
=61.02×100+61.02×7-61.02×0.1+2.754
=6102+427.14-6.102+3-0.246
=6102+430.14-6.348
=6532.14-7+0.652
=6525.792