题目内容
计算:
①
-
-(-
)+(-
)
②15-〔1-(-10-4)〕
③(-
-
+
)÷
④-14-[2-(-3)2]÷(-
)3.
①
2 |
3 |
1 |
6 |
1 |
3 |
5 |
6 |
②15-〔1-(-10-4)〕
③(-
3 |
4 |
2 |
9 |
5 |
12 |
1 |
36 |
④-14-[2-(-3)2]÷(-
1 |
2 |
①原式=(
+
)-(
+
)
=1-1
=0;
②原式=15-1-10-4
=0;
③原式=(-
-
+
)×36
=-27-8+15
=-20;
④原式=-1-(2-9)×(-8)
=-1-56
=-57.
2 |
3 |
1 |
3 |
1 |
6 |
5 |
6 |
=1-1
=0;
②原式=15-1-10-4
=0;
③原式=(-
3 |
4 |
2 |
9 |
5 |
12 |
=-27-8+15
=-20;
④原式=-1-(2-9)×(-8)
=-1-56
=-57.
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