0.8÷(5/4×1.25)÷(0.64-1/25)+1.2×0.5÷4/5
=0.8÷(5/4×5/4)÷(0.64-0.04)+6×5/4
=4/5÷(25/16)÷(3/5)+6×5/4
=4/5×(16/25)×(5/3)+6×5/4
=64/75+15/2
=128/150+1125/150
=1253/150
0.8÷(5/4×1.25)÷(0.64-1/25)+1.2×0.5÷4/5
1个回答
相关问题
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口算下面各题．4.8÷1.2= 5.5÷1.1= 0.4×0.05= 1.6÷0.04= 0.25÷0.5= 0.8×1
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口算4.2÷0.1=7÷0.25=5.6×1.01=1.25×0.8×0.5=0.9÷0.01=1.23÷3=0.99+
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1÷0.25=?7.9÷0.01=?（2.5+0.9）×0.4=?（1.5+0.25）×4=?
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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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直接写得数．10÷8=2.6÷0.1=44÷0.4=5.5÷0.01=4.9÷0.7=1.25×4=3.64+5.69=
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口算 5×4=6.4÷0.8=7.2×0.01=10÷4=0.36×2=1÷0.125=0.25×8=8.1÷0.3=0
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1.25÷(1.25×0.125)-0.5×4
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口算1.2÷0.2= 2.5×4= 0.25+4= 1.87×0= 3.5+0.5= 1.2÷0.4= 3.6÷4= 0
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直接写得数．46.9÷100= 0.25×3.1×4= 3.25÷0.5×0= 8.4×0.2+1.6×0.2= 8.5
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直接写出结果（1）0.25×4=______ （2）4.8÷8=______ （3）0.5+0.5÷0.5=______