Question

计算（能简算的要简算）急急急急急

Answer 1

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

Answer 2

追答

亲，满意吗，满意就给个好评吧！

Answer 3

=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