题目内容
用你喜欢的方法计算下面各题.
+
×
÷
+
+
24×(
+
-
)
| 1 |
| 3 |
| 2 |
| 3 |
| 3 |
| 4 |
| 1 |
| 3 |
| 4 |
| 9 |
| 1 |
| 3 |
| 1 |
| 4 |
24×(
| 1 |
| 6 |
| 3 |
| 4 |
| 2 |
| 3 |
考点:分数的简便计算,分数的四则混合运算
专题:运算顺序及法则,运算定律及简算
分析:①②按照四则混合运算的顺序进行计算即可.
③运用乘法的分配律进行计算即可.
③运用乘法的分配律进行计算即可.
解答:
解:①
+
×
=
+
=
②
÷
+
+
=
×
+
+
=
+
+
=1
③24×(
+
-
)
=24×
+24×
-24×
=4+18-16
=6
| 1 |
| 3 |
| 2 |
| 3 |
| 3 |
| 4 |
=
| 1 |
| 3 |
| 1 |
| 2 |
=
| 5 |
| 6 |
②
| 1 |
| 3 |
| 4 |
| 9 |
| 1 |
| 3 |
| 1 |
| 4 |
=
| 1 |
| 3 |
| 9 |
| 4 |
| 1 |
| 3 |
| 1 |
| 4 |
=
| 3 |
| 4 |
| 1 |
| 3 |
| 1 |
| 4 |
=1
| 1 |
| 3 |
③24×(
| 1 |
| 6 |
| 3 |
| 4 |
| 2 |
| 3 |
=24×
| 1 |
| 6 |
| 3 |
| 4 |
| 2 |
| 3 |
=4+18-16
=6
点评:此题主要考查分数、整数、小数的四则混合运算的运算顺序和应用运算定律进行简便计算.
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