2个回答
展开全部
0.3+0.3÷0.3-0.3×0.3
=0.3+1-0.9
=0.3+0.1
=0.4
1.2÷1.25
=6/5÷10/8
=6/5×8/10
=48/50
=96/100
=0.96
=0.3+1-0.9
=0.3+0.1
=0.4
1.2÷1.25
=6/5÷10/8
=6/5×8/10
=48/50
=96/100
=0.96
追问
第二道/是×还是÷
追答
1.2÷1.25
=6/5÷10/8
=6/5×8/10 除以8分之10等于乘以10分之8
=48/50
=96/100
=0.96
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