问题
解答题
①
②23÷(-
③(-3)2×23-(-4)÷2 ④(
⑤-14÷(-5)2×(-
|
答案
①
5 |
6 |
3 |
4 |
2 |
3 |
1 |
2 |
=
10 |
12 |
9 |
12 |
8 |
12 |
6 |
12 |
=
3 |
12 |
1 |
4 |
②23÷(-
4 |
9 |
2 |
3 |
=8×(-
9 |
4 |
4 |
9 |
=-8;
③(-3)2×23-(-4)÷2,
=9×8+2,
=74;
④(
1 |
4 |
1 |
36 |
1 |
6 |
1 |
12 |
1 |
48 |
=(
1 |
4 |
1 |
36 |
1 |
6 |
1 |
12 |
=-12+
4 |
3 |
=
4 |
3 |
⑤-14÷(-5)2×(-
5 |
3 |
=-1×
1 |
25 |
5 |
3 |
1 |
5 |
=
4 |
15 |