计算(240-3×45)÷5时,应先算______法,再算______法,最后算______法,结果是______

2025-04-16 07:51:37
推荐回答(1个)
回答1:

(240-3×45)÷5
=(240-135)÷5
=105÷5
=21;
所以计算(240-3×45)÷5时,应先算乘法,再算减法,最后算除法,结果是21.
故答案为:乘,减,除,21.