题目内容
计算.
×
÷
(
+
)×4
÷
+
÷
.
| 7 |
| 4 |
| 16 |
| 9 |
| 3 |
| 4 |
(
| 7 |
| 37 |
| 1 |
| 37 |
| 14 |
| 15 |
| 7 |
| 30 |
| 28 |
| 45 |
| 4 |
| 15 |
分析:(1)按照从左到右顺序解答,
(2)按照先算括号里面的加法,再算括号外面的乘法顺序解答,
(3)按照先同时计算除法,再算加法顺序解答.
(2)按照先算括号里面的加法,再算括号外面的乘法顺序解答,
(3)按照先同时计算除法,再算加法顺序解答.
解答:解:(1)
×
÷
=
÷
=4
;
(2)(
+
)×4
=
×4
=
;
(3)
÷
+
÷
=4+
=6
.
| 7 |
| 4 |
| 16 |
| 9 |
| 3 |
| 4 |
=
| 28 |
| 9 |
| 3 |
| 4 |
=4
| 4 |
| 27 |
(2)(
| 7 |
| 37 |
| 1 |
| 37 |
=
| 8 |
| 37 |
=
| 32 |
| 37 |
(3)
| 14 |
| 15 |
| 7 |
| 30 |
| 28 |
| 45 |
| 4 |
| 15 |
=4+
| 7 |
| 3 |
=6
| 1 |
| 3 |
点评:依据四则运算计算方法正确进行计算,是本题考查知识点.
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