题目内容
24÷
×(
+1
-
-
)
29 |
30 |
7 |
8 |
3 |
4 |
11 |
12 |
1 |
2 |
考点:分数的四则混合运算
专题:运算顺序及法则
分析:先算加法,再算减法,再算除法,最后算乘法.
解答:
解:24÷
×(
+1
-
-
)
=24÷
×(2
-
-
)
=24÷
×(1
-
)
=24÷
×1
=24×
×
=24×
×
=29×
=30.
29 |
30 |
7 |
8 |
3 |
4 |
11 |
12 |
1 |
2 |
=24÷
29 |
30 |
5 |
8 |
11 |
12 |
1 |
2 |
=24÷
29 |
30 |
17 |
24 |
1 |
2 |
=24÷
29 |
30 |
5 |
24 |
=24×
30 |
29 |
29 |
24 |
=24×
29 |
24 |
30 |
29 |
=29×
30 |
29 |
=30.
点评:考查了分数四则混合运算,注意运算顺序和运算法则,然后再进一步计算.
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