题目内容
简便运算。
|
(1)原式=2.5×4×(7.2÷0.9) =10×8 =80 |
(2)原式= 4.2÷1.4×(0.34÷0.34) =3×1 =3 |
(3)原式=1÷(32×0.05×0.25×0.5) =1÷0.2 =5 |
(4)原式=1.25×8×0.7+2.25×4×0.9 =10×0.7+9×0.9 =15.1 |
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题目内容
简便运算。
|
(1)原式=2.5×4×(7.2÷0.9) =10×8 =80 |
(2)原式= 4.2÷1.4×(0.34÷0.34) =3×1 =3 |
(3)原式=1÷(32×0.05×0.25×0.5) =1÷0.2 =5 |
(4)原式=1.25×8×0.7+2.25×4×0.9 =10×0.7+9×0.9 =15.1 |