2+5/1×﹙1/3-1/2﹚×3/11÷1+4/1=?18+32÷﹙﹣2﹚³-﹙﹣4﹚²×5=?
问题描述:
2+5/1×﹙1/3-1/2﹚×3/11÷1+4/1=?18+32÷﹙﹣2﹚³-﹙﹣4﹚²×5=?
答
(1)2又1/5×(1/3-1/2)×3/11÷1又1/4
=11/5×(-1/6)×3/11×5/4
=-1/8(-8分之1)
(2)
18+32÷﹙﹣2﹚³-﹙﹣4﹚²×5
=18-32÷8-16×5
=18-4-80
=-66