2.25×1.8-12.5×0.18
=22.5×0.18-12.5×0.18
=0.18×(22.5-12.5)
=1.8
3/8+5/8÷5/6
=3/8+5/8×6/5
=3/8+ 6/8
=1又1/8
2.25×1.8-12.5×0.18= 3/8+5/8÷5/6=
1个回答
相关问题
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口算4.8÷3= 1.8×0.5= 0.04×5= 0÷8.13= 25.2÷6= 3.5×0.07= 3.6÷1.8=
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直接写出得数 12.5÷0.5= 1.25×8= 3.6×25%= 12×100%= 0.23÷0.1= [2/5]÷3
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直接写出得数 1.8×0.5= 0.8×12.5= 4.5÷1.5= 18.5÷5= 0.6×7= 2.6÷20= 10
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1.8+2.6= 2.5×4= 12.5×8= 1.65÷（6.5÷6.5）= 4.8+8= 0.5+9= 0.53-0
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1.8+2.6= 2.5×4= 12.5×8= 1.65÷（6.5÷6.5）= 4.8+8= 0.5+9= 0.53-0
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递等式计算： （7.5+2.5）×0.25 710-18×4 5.4÷18+12 2÷[8/5]×[25/24] 2.2
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3.8÷1.25÷1.25÷8÷8 0.368×(4.82+5.7+5.18+2.9)÷3.68
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25×8=8.5-3.7=0.56÷0.07=4×9.2×0.25=[5/6−23]=[2/3+15]=[5/8−34+
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5.79×0.8+0.8×5.21-0.8=?1/6÷【（5/6-1/8）×2/17=?
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直接写得数．1.6÷0.4=3.8×0.5=10.8÷10=（4.8-2.4）×5=5.9+5.9×99=18.8-2.