题目内容
| 3 |
| 8 |
| 3 |
| 10 |
| 1 |
| 5 |
分析:此题应先求出“
与
的差”,即
-
=
,然后求
的
是多少,用乘法计算,即
×
,综合算式为:
-
)×
,计算即可.
| 3 |
| 8 |
| 3 |
| 10 |
| 3 |
| 8 |
| 3 |
| 10 |
| 3 |
| 40 |
| 3 |
| 40 |
| 1 |
| 5 |
| 3 |
| 40 |
| 1 |
| 5 |
| 3 |
| 8 |
| 3 |
| 10 |
| 1 |
| 5 |
解答:解:(
-
)×
,
=(
-
)×
,
=
×
,
=
;
答:
与
的差的
是
.
| 3 |
| 8 |
| 3 |
| 10 |
| 1 |
| 5 |
=(
| 15 |
| 40 |
| 12 |
| 40 |
| 1 |
| 5 |
=
| 3 |
| 40 |
| 1 |
| 5 |
=
| 3 |
| 200 |
答:
| 3 |
| 8 |
| 3 |
| 10 |
| 1 |
| 5 |
| 3 |
| 200 |
点评:此题考查了学生根据题意确定运算顺序并列式解答的能力.
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