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计算题.1112×946÷2223712÷23+512÷23(25+25×99)÷25[1÷(34+13)]×34.
题目详情
计算题.
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(
| [1÷(
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▼优质解答
答案和解析
(1)
×
÷
=
÷
=
;
(2)
÷
+
÷
=(
+
)×
=1×
=1.5;
(3)(
+
×99)÷
=
×(1+99)÷
=(
÷
)×(1+99)
=1×100
=100;
(4)[1÷(
+
)]×
=[1÷
]×
=
×
=
.
11 |
12 |
9 |
46 |
22 |
23 |
=
33 |
184 |
22 |
23 |
=
3 |
16 |
(2)
7 |
12 |
2 |
3 |
5 |
12 |
2 |
3 |
=(
7 |
12 |
5 |
12 |
3 |
2 |
=1×
3 |
2 |
=1.5;
(3)(
2 |
5 |
2 |
5 |
2 |
5 |
=
2 |
5 |
2 |
5 |
=(
2 |
5 |
2 |
5 |
=1×100
=100;
(4)[1÷(
3 |
4 |
1 |
3 |
3 |
4 |
=[1÷
13 |
12 |
3 |
4 |
=
12 |
13 |
3 |
4 |
=
9 |
13 |
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