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3.2÷4= 8.4÷1.4= 6.9÷0.3= 8.1÷0.09= 4.9÷7=...

3.2÷4=0.8 8.4÷1.4=6 6.9÷0.3=23 8.1÷0.09=90 4.9÷7=0.7 7.2÷1.8=4 1.1÷0.5=2.2 11.1÷3.7=3 2.4÷6=0.4 7.8÷1.3=6 9.6÷3.2=3 0.96÷1.2=0.8 4.8÷8=0.6 6.8÷1.7=4 9.9÷1.1=9 0.68÷0.4=1.7

解:4.2÷7=0.6 0.42÷3=0.14 7.2÷0.4=18 5.4÷6=0.9 0.09÷6=0.015 8.1÷0.3=27 5.6÷8=0.7 0.72÷6=0.12 9.1÷0.7=13 6.3÷9=0.7 0.45÷3=0.15 8.4÷0.6=14 7.2÷8=0.9 0.52÷4=0.13 6.5÷0.5=13 0.57÷0.3=1.9

7.8×0.1=0.78 6.4÷0.2=32 1.25×0.8=1 35÷4=8.75 0.21÷0.3=0.7 7×0.9=6.3 0.36÷0.09=4 1.2×0.5=0.6 3.5×20=70 4.3÷10=0.43 0.8×0.7=0.56 32÷0.8=40

0.5×5=2.5 0.18+0.82=1 2.1+0.6+7.9=10.6 0.6÷0.2=3 0.09×1000=90 0.8×3.5×0.125=0.35 1.2÷4=0.3 5.52÷100=0.0552 1.3×3÷10=0.39 0.72÷6=0.12 5.52÷0.01=552 5÷0.5÷2=5 3.9-3=0.9 0.1×6.9=0.69 0.9+0.9÷0.9=1.9

(1)[(5.1-3.6)÷0.8-1]×0.09=[1.5÷0.8-1]×0.09=[1.875-1]×0.09=0.875×0.09=0.07875(2)98.4×98+98.4×2=98.4×(98+2)=98.4×100=9840(3)30.1÷[(6.07+2.53)×0.7]=30.1÷[8.6×0.7]=30.1÷6.02=5(4)0.94×2.5+0.094×75=0.94×2.5+0.94×7.5=0.9...

3×3.14=9.42, 0.3 2 =0.09, 1 6 - 1 8 = 1 24 , 7 36 ×18 = 7 2 , 9÷ 1 9 =81, 11×3.14=34.54, 2 3 ÷ 3 8 = 16 9 , 4.5 2 =20.25, 25-8.6=16.4, 24×( 1 2 + 3 4 - 7 8 ) =9, 2- 1 5 + 4 5 =2 3 5 .

解: 题目中没有A的任何信息 只知道1÷B=0.09 可以得知0.09B=1 无法知道8÷A等于多少。

解答: 解:2.5×10=25 65.8÷100=0.658 91.05÷1000=0.09105 1-0.37=0.63 0.05×1000=50 14×60=840 0.5+0.4=0.9 0.9-0.3=0.6 7.6÷10=0.76 7.06×100=706 9.7-7=2.7 7.8+2.2=10

1.8-0.6=1.2 2.6+3.4=6 0.4÷10=0.04 2.65×100=265 125×8=1000 30×300=9000 3.8+1.2=5 0.09+1.01=1.1 5.1+2.9=8 7.5-4.54=2.96 7.6-4=3.6 2.8÷100=0.028 6.13-4.13=2 8+0.2=8.2 0.8×100=80 3×25×4=300

0.75+0.4=1.15 20+0.78=20.78 4.8+4.2=9 5.7-3=2.7 4.9-1.7=3.2 1.34+0.8=2.14 2-0.75=1.25 8.7+0.03=8.73 0.2-0.09=0.11 8.5+2.5=11 3.4-1.4=2 0.68+0.42=1.1

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