计算.3.2×0.25-47÷40.4×(3.85-0.4)÷13.815.8-718+14.2-11188×(38+127)+19271318÷(56+23×38)68÷[0.5×(7.5-0.7)].-数学
题文
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答案
(1)3.2×0.25-
=
=
=
(2)0.4×(3.85-0.4)÷13.8, =0.4×3.45÷13.8, =1.38÷13.8, =0.1; (3)15.8-
=(15.8+14.2)-(
=30-1, =29; (4)8×(
=8×
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题文
|
答案
(1)3.2×0.25-
=
=
=
(2)0.4×(3.85-0.4)÷13.8, =0.4×3.45÷13.8, =1.38÷13.8, =0.1; (3)15.8-
=(15.8+14.2)-(
=30-1, =29; (4)8×(
=8×
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