题目内容
【题目】能简算要简算.
50×( | 5﹣ |
|
| 5﹣ |
|
【答案】36;4;
;5;3;2
【解析】解:(1)50×(
+
)
=50×
+50× ![]()
=30+6
=36
(2)5﹣
﹣ ![]()
=5﹣(
+
)
=5﹣1
=4
(3)
÷7+
× ![]()
=
×
+
× ![]()
=(
+
)× ![]()
=1× ![]()
= ![]()
(4)
×[(
﹣
)×36]
=
×[
×
×36]
=
×[30﹣20]
=
×10
=5
(5)5﹣
×
﹣ ![]()
=5﹣
﹣ ![]()
=5﹣(
+
)
=5﹣2
=3
(6)
+0.25+
+75%
=(
+
)+(0.25+75%)
=1+1
=2
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