计算(能简算的要简算)急急急急急
3个回答
展开全部
8.05-3.6-1.4
=8.05-(3.6+1.4)
=8.05-5
=3.05
88×0.3×1.25
=1.25×8×11×0.3
=10×0.3×11
=3×11
=33
165+980÷28×16
=165+980×16÷4÷7
=165+980÷7×4
=165+140×4
=165+560
=725
18×(1/3+1/9-1/6)
=18×1/3+18×1/9-18×1/6
=6+2-3
=5
4/25÷ [ 4/5-(1/5+2/5) ]
=4/25÷ [ 4/5-3/5 ]
=4/25÷1/5
=4/25×5
=4/5
2.5÷5/6×3/5
=5/2×6/5×3/5
=3×3/5
=9/5
=8.05-(3.6+1.4)
=8.05-5
=3.05
88×0.3×1.25
=1.25×8×11×0.3
=10×0.3×11
=3×11
=33
165+980÷28×16
=165+980×16÷4÷7
=165+980÷7×4
=165+140×4
=165+560
=725
18×(1/3+1/9-1/6)
=18×1/3+18×1/9-18×1/6
=6+2-3
=5
4/25÷ [ 4/5-(1/5+2/5) ]
=4/25÷ [ 4/5-3/5 ]
=4/25÷1/5
=4/25×5
=4/5
2.5÷5/6×3/5
=5/2×6/5×3/5
=3×3/5
=9/5
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展开全部
=8.05-(3.6+1.4)
=8.05-5
=3.05
=4/25÷【4/5-3/5】
=4/25×5
=4/5
165+980×1/28×16
=165+980×(1/28×16)
=165+980×4/7
=165+140×4
=165+560
=725
qcn
=8.05-5
=3.05
=4/25÷【4/5-3/5】
=4/25×5
=4/5
165+980×1/28×16
=165+980×(1/28×16)
=165+980×4/7
=165+140×4
=165+560
=725
qcn
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