直接写出得数.0.78+0.22= = = 0÷=3+5%+17%= = 0.43+0.17+0.39= 8.4+=0.1÷0.01= 1.2×= 32×2.5= =742﹣299= 101×9.2﹣9.2= = =
脱式计算,能简算的要简算.+ (+﹣)×24+(﹣)× 0.625×9.6+62.5%×.
(1)÷× (2)(﹣)÷ (3)×+÷9 (4)5﹣(÷+)
灵活选择算法脱式计算 (1) (2) (3)125×(8+0.8+0.08) (4).
下面各题,怎样算简便就怎样算 (﹣)××+××19+××13×11×+×﹣2008× (+)×7×95﹣3×+﹣(﹣+)
计算下面各题,(能简算的要简算).