题目内容
计算各题,能简便运算的写出主要过程. 36×(
| (
| ||||||||||||
0.25×125×32 |
|
(1)36×(
+
+
)
=36×
+
×36+
×36
=9+6+4
=19;
(2)(
+
-
)×24
=
×24+
×24-
×24
=8+6-1
=13;
(3)0.25×125×32
=0.25×125×(4×8)
=(0.25×4)×(125×8)
=1×1000
=1000;
(4)
×7+
×11
=
×(7+11)
=
×18
=10.
1 |
4 |
1 |
6 |
1 |
9 |
=36×
1 |
4 |
1 |
6 |
1 |
9 |
=9+6+4
=19;
(2)(
1 |
3 |
1 |
4 |
1 |
24 |
=
1 |
3 |
1 |
4 |
1 |
24 |
=8+6-1
=13;
(3)0.25×125×32
=0.25×125×(4×8)
=(0.25×4)×(125×8)
=1×1000
=1000;
(4)
5 |
9 |
5 |
9 |
=
5 |
9 |
=
5 |
9 |
=10.
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