题目内容
直接写出得数. 0.2×8= |
12.5×8= | 6.2+0.04= | 2.5×0.4= |
0.6×0.7= | 6-0.7= | 6.4+4.6= | 0.04×0.3= |
0.5×2.4= | 2.1-2.01= | 11.5÷5= | 0.4÷8= |
分析:横向数:(1)(2)(4)(5)(8)(9)依据小数乘法计算方法解答,
(3)(7)依据小数加法计算方法解答,
(6)(10)依据小数减法计算方法解答,
(11)(12)依据小数除法计算方法解答.
(3)(7)依据小数加法计算方法解答,
(6)(10)依据小数减法计算方法解答,
(11)(12)依据小数除法计算方法解答.
解答:
解:0.2×8=1.6; | 12.5×8=100; | 6.2+0.04=6.24; | 2.5×0.4=1; |
0.6×0.7=0.42; | 6-0.7=5.3; | 6.4+4.6=11; | 0.04×0.3=0.012; |
0.5×2.4=1.2; | 2.1-2.01=0.09; | 11.5÷5=2.3; | 0.4÷8=0.05. |
点评:本题主要考查学生对于小数四则运算计算方法的掌握情况.
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