脱式计算,能简便的要用简便方法计算.0.36×1.5×0.4 0.05×3.2×40 26×15.7+15.7×74 3.78×0.5-
脱式计算,能简便的要用简便方法计算.0.36×1.5×0.40.05×3.2×4026×15.7+15.7×743.78×0.5-0.653.98+13.4×0.24(9...
脱式计算,能简便的要用简便方法计算.0.36×1.5×0.4 0.05×3.2×40 26×15.7+15.7×74 3.78×0.5-0.65 3.98+13.4×0.24 (9.37+9.37+9.37+9.37)×2.5.
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(1)0.36×1.5×0.4, =0.36×(1.5×0.4), =0.36×0.6, =0.216; (2)0.05×3.2×40, =(0.05×40)×3.2, =2×3.2 =6.4; (3)26×15.7+15.7×74, =(26+74)×15.7, =100×15.7, =1570; (4)3.78×0.5-0.65, =1.89-0.65, =1.24; (5)3.98+13.4×0.24, =3.98+3.216, =7.196; (6)(9.37+9.37+9.37+9.37)×2.5, =9.37×4×2.5, =9.37×(4×2.5), =9.37×10, =93.7. |
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