简便运算求解答 0.8×0.12÷0.08 4.9÷(0.7÷0.4) 1.5÷5.5×0.55 2.5×(4.6÷0.25)0.8×0.12÷0.08 4.9÷(0.7÷0.4)1.5÷5.5×0.55 2.5×(4.6÷0.25)

问题描述:

简便运算求解答 0.8×0.12÷0.08 4.9÷(0.7÷0.4) 1.5÷5.5×0.55 2.5×(4.6÷0.25)
0.8×0.12÷0.08
4.9÷(0.7÷0.4)
1.5÷5.5×0.55
2.5×(4.6÷0.25)

0.8×0.12÷0.08
=10*0.12
=1.2
4.9÷(0.7÷0.4)
=4.9/(7/4)
=4.9*4/7
=2.8
1.5÷5.5×0.55
=1.5*0.55/5.5
=1.5*0.1
=0.15
2.5×(4.6÷0.25)
=2.5*4.6/0.25
=10*4.6
=46