| 直接写出得数. 2.2+3.8= | 14.5-9.5= | 3.25×4= | × = | 1- = |
6× = | ÷ = | + = | 4÷ = | × = |
| (1)2.2+3.8=6; | (2)14.5-9.5=5; | (3)3.25×4=13; | (4) × = ; | (5)1- = ; |
(6)6× = ; | (7) ÷ = ; | (8) + = ; | (9)4÷ =10; | (10) × = . |
分析:(1)根据小数的加法法则计算即可;
(2)根据小数的减法法则计算即可;
(3)根据小数的乘法法则计算即可;
(4)(6)(10)根据分数的乘法法则计算即可;
(5)(8)根据分数的加法法则计算即可;
(7)(9)根据分数的除法法则计算即可.
点评:考查了四则运算,解题的关键是熟悉运算法则.
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