291减去13.5与6的积,所得的差除以4.2,商是多少?

2025-04-06 22:47:01
推荐回答(1个)
回答1:

(291-13.5×6)÷4.2,
=(291-81)÷4.2,
=210÷4.2,
=50;
答:商是50.