题目内容
脱式计算.
10×(36+300÷12) | (
|
|
分析:(1)按照整数四则混合运算顺序计算.
(2)(3)题按分数四则混合运算顺序计算.
(2)(3)题按分数四则混合运算顺序计算.
解答:解:(1)10×(36+300÷12),
=10×(36+25),
=610;
(2)(
-
)÷
×
,
=
×
×
,
=
;
(3)
÷[
×(
+
)],
=
÷[
×
],
=
×
,
=
,
=1
;
=10×(36+25),
=610;
(2)(
2 |
3 |
1 |
2 |
5 |
3 |
5 |
6 |
=
1 |
6 |
3 |
5 |
5 |
6 |
=
1 |
12 |
(3)
8 |
9 |
4 |
3 |
2 |
5 |
1 |
10 |
=
8 |
9 |
4 |
3 |
1 |
2 |
=
8 |
9 |
3 |
2 |
=
4 |
3 |
=1
1 |
3 |
点评:此题主要考查分数、整数的四则混合运算的运算顺序,考查了学生的计算能力.
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