243-(135÷9 47)简便运算怎样算写出答案不要提问?

2025-04-08 02:23:21
推荐回答(2个)
回答1:

243-(135÷9-47)

=243-135÷9+47

=243-15+47

=243+47-15

=290-15

=275


回答2:

243-(135÷5+47)
=243-(27+47)
=243-74
=169