脱式计算45×27+45÷75(1375+450÷18)×2000.4÷(2.4×4-36×0.25)329-65×57-217.-数学
题文
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答案
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(1375+450÷18)×200, =(1375+25)×200 =280000; 0.4÷(2.4×4-36×0.25), =0.4÷(9.6-9), =0.4÷0.6, =
3
=3
=3
=3
=
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题文
|
答案
=
=
(1375+450÷18)×200, =(1375+25)×200 =280000; 0.4÷(2.4×4-36×0.25), =0.4÷(9.6-9), =0.4÷0.6, =
3
=3
=3
=3
=
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