Question

45.7-(35.7-16.91)的简便方法？

Answer 1

四则混合运算咱先算括号，但是这个题为了简便运算不需要先算括号里的，应该先去括号
即45.7-35.7+16.91
因为45.7-35.7更容易计算
所以原式=45.7-35.7+16.91=26.91

Answer 2

括号外面是减号，去掉括号后，括号里面要变相反符号。简算过程如下
45.7-（35.7-16.91）
=45.7-35.7+16.91
=10+16.91
=26.91

Answer 3

去括号后再计算，比较简便
45.7-(35.7-16.91)
=45.7-35.7+16.91
=10+16.91
=26.91

Answer 4

45.7-(35.7-16.91)的简便方法如下
45.7-(35.7-16.91)
=45.7-35.7+16.91
=10+16.91
=26.91

Answer 5

45.7-(35.7-16.91)
=45.7一35.7+16.91
=10+16.91
=26.91