题目内容
计算.
×
×
×
(
+
)×10×6
(
-
)÷(4÷
)
×[(
+
)÷
].
| 1 |
| 2 |
| 2 |
| 3 |
| 3 |
| 4 |
| 4 |
| 5 |
(
| 1 |
| 10 |
| 1 |
| 6 |
(
| 1 |
| 2 |
| 3 |
| 8 |
| 8 |
| 15 |
| 5 |
| 11 |
| 2 |
| 5 |
| 1 |
| 3 |
| 5 |
| 6 |
分析:依据四则混合运算顺序,先算第二级运算,再算第一级运算,如果只含有同一级运算,按照从左到右顺序计算,有括号先算括号的.
解答:解:(1)
×
×
×
,
=
×
×
,
=
×
,
=
;
(2)(
+
)×10×6,
=
×10×6,
=
×6,
=16;
(3)(
-
)÷(4÷
),
=
÷
,
=
;
(4)
×[(
+
)÷
],
=
×[
÷
],
=
×
,
=
.
| 1 |
| 2 |
| 2 |
| 3 |
| 3 |
| 4 |
| 4 |
| 5 |
=
| 1 |
| 3 |
| 3 |
| 4 |
| 4 |
| 5 |
=
| 1 |
| 4 |
| 4 |
| 5 |
=
| 1 |
| 5 |
(2)(
| 1 |
| 10 |
| 1 |
| 6 |
=
| 8 |
| 30 |
=
| 8 |
| 3 |
=16;
(3)(
| 1 |
| 2 |
| 3 |
| 8 |
| 8 |
| 15 |
=
| 1 |
| 8 |
| 15 |
| 2 |
=
| 1 |
| 60 |
(4)
| 5 |
| 11 |
| 2 |
| 5 |
| 1 |
| 3 |
| 5 |
| 6 |
=
| 5 |
| 11 |
| 11 |
| 15 |
| 5 |
| 6 |
=
| 5 |
| 11 |
| 22 |
| 25 |
=
| 2 |
| 5 |
点评:本题主要考查学生对于四则运算顺序知识的掌握.
练习册系列答案
相关题目