4,5,6题怎么做
1个回答
2014-11-04
展开全部
4.
1.5÷(9.7+2)
=1.5÷11.7
=3/2÷117/10
=30/134(分钟)
5.
1.08×0.8÷0.27
=0.864÷0.27
=3.2
2.05÷0.82+33.6
=2.5+33.1
=36.1
44.28÷0.9÷4.1
=49.2÷4.1
=12
9.07-22.78÷3.4
=9.07-6.7
=2.37
6.
100÷18.5=5(本)
1.5÷(9.7+2)
=1.5÷11.7
=3/2÷117/10
=30/134(分钟)
5.
1.08×0.8÷0.27
=0.864÷0.27
=3.2
2.05÷0.82+33.6
=2.5+33.1
=36.1
44.28÷0.9÷4.1
=49.2÷4.1
=12
9.07-22.78÷3.4
=9.07-6.7
=2.37
6.
100÷18.5=5(本)
追答
不好意思,第4题搞错了,应该是:
(9.7+2)÷1.5
=11.7÷1.5
=7.8(分钟)
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