题目内容
看谁算得又对又快
| 1.43+0.57= | 3.2×5= | 3.5÷0.7= | 1.72-0.9= | ||||||||||||||
|
|
| 1.25×0.3×8= | ||||||||||||||
| 81÷
|
| 2-
| ||||||||||||||
|
| (3.6+
| (
|
考点:分数的加法和减法,分数乘法,小数的加法和减法
专题:运算顺序及法则
分析:直接利用小数、分数四则运算的计算方法和混合运算的顺序计算得出答案即可.
解答:
解:1.43+0.57=2 3.2×5=16 3.5÷0.7=5 1.72-0.9=0.82
-
=
+
=
+
=
1.25×0.3×8=3
×16=10 81÷
=45
÷
=
2-
-
=1
×
=
-
=
(3.6+
)÷9=
(
+
)×8=9
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点评:解答此题掌握四则运算的计算法则,混合运算的运算顺序,是正确计算的前提.
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