
计算下面各题.(能简算的要用简便方法算)60×(25+34?12)1-[16+(34?712)]58×1110+38÷1011
计算下面各题.(能简算的要用简便方法算)60×(25+34?12)1-[16+(34?712)]58×1110+38÷1011....
计算下面各题.(能简算的要用简便方法算)60×(25+34?12)1-[16+(34?712)]58×1110+38÷1011.
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(1)60×(
+
?
)
=60×
+60×
-60×
=24+45-30
=39
(2)1-[
+(
?
)]
=1-[
+
]
=1-
=
(3)
×
+
÷
=
×
+
×
=(
+
)×
=1×
=
2 |
5 |
3 |
4 |
1 |
2 |
=60×
2 |
5 |
3 |
4 |
1 |
2 |
=24+45-30
=39
(2)1-[
1 |
6 |
3 |
4 |
7 |
12 |
=1-[
1 |
6 |
1 |
6 |
=1-
1 |
3 |
=
2 |
3 |
(3)
5 |
8 |
11 |
10 |
3 |
8 |
10 |
11 |
=
5 |
8 |
11 |
10 |
3 |
8 |
11 |
10 |
=(
5 |
8 |
3 |
8 |
11 |
10 |
=1×
11 |
10 |
=
11 |
10 |
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