计算.47-(47-59)13+25+23+3512+(13-15)13-14+112512+34-381112+45+112.-数学
3 |
5 |
=(
1 |
3 |
2 |
3 |
2 |
5 |
3 |
5 |
=1+1,
=2;
(3)
1 |
2 |
1 |
3 |
1 |
5 |
=
1 |
2 |
2 |
15 |
=
19 |
30 |
(4)
1 |
3 |
1 |
4 |
1 |
12 |
=
1 |
12 |
1 |
12 |
=
1 |
6 |
(5)
5 |
12 |
3 |
4 |
3 |
8 |
=
7 |
6 |
3 |
8 |
=
19 |
24 |
(6)
11 |
12 |
4 |
5 |
1 |
12 |
=(
11 |
12 |
1 |
12 |
4 |
5 |
=1+
4 |
5 |
=1
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