28×2=1.8+2.9=4.8÷12=10-0.9=
0.25×4=數(shù)學(xué)公式-數(shù)學(xué)公式=數(shù)學(xué)公式+數(shù)學(xué)公式=數(shù)學(xué)公式×數(shù)學(xué)公式=
1-75%=數(shù)學(xué)公式÷數(shù)學(xué)公式=

(1)28×2=56(2)1.8+2.9=4.7(3)4.8÷12=0.4(4)10-0.9=9.1
(5)0.25×4=1(6)-=(7)+=(8)×=
(9)1-75%=0.25(10)÷=


分析:(1)根據(jù)整數(shù)乘法的計算法則進行計算,
(2)(4)根據(jù)小數(shù)加減法的計算法則進行計算,
(3)根據(jù)小數(shù)除法的計算法則進行計算,
(5)根據(jù)小數(shù)乘法的計算法則進行計算,
(6)(7)根據(jù)分?jǐn)?shù)加減法的計算法則進行計算,
(8)根據(jù)分?jǐn)?shù)乘法的計算法則進行計算,
(9)先把百分?jǐn)?shù)化成小數(shù),再根據(jù)小數(shù)減法的法則進行計算,
(10)根據(jù)分?jǐn)?shù)乘法的計算法則進行計算.
點評:本題考查了學(xué)生基本的計算能力.
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科目:小學(xué)數(shù)學(xué) 來源: 題型:

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科目:小學(xué)數(shù)學(xué) 來源: 題型:解答題

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