2200÷375×37-5简便方式运算?

2026-05-21 14:57:11
推荐回答(1个)
回答1:

2200÷375×37-5
=22×100÷25÷15×37-5
=37×22×4÷15-5
=37×88÷15-5
=(37×90-37×2)÷15-5
=(37×3×30-74)÷15-5
=(3330-100+26)÷15-5
=3256/15-5
=3000/15+255/15+1/15-5
=200+17-5+1/15
=212又15分之1