题目内容
计算:
(1)(-2)3+2×(-3);
(2)17-23÷(-2)×3;
(3)2×(-5)+23-3÷
.
(4)[1
-(
+
-
)×24]÷5;
(5)7×(-2
)+3×(-2
)-5×(-2
);
(6)-0.752÷(-1
)3+(-1)21×(
-
).
(1)(-2)3+2×(-3);
(2)17-23÷(-2)×3;
(3)2×(-5)+23-3÷
| 1 |
| 2 |
(4)[1
| 1 |
| 24 |
| 3 |
| 8 |
| 1 |
| 6 |
| 3 |
| 4 |
(5)7×(-2
| 2 |
| 5 |
| 2 |
| 5 |
| 2 |
| 5 |
(6)-0.752÷(-1
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 2 |
(1)原式=-8-6=-14;
(2)原式=17-8×(-
)×3=17+4×3=17+12=29;
(3)原式=-10+8-6=-8;
(4)原式=(1
-9-4+18)÷5=(
+5)÷5=
+1=1
;
(5)原式=(7+3-5)×(-2
)=5×(-
)=-12;
(6)原式=-
÷(-
)-1×(-
)
=
×
+
=
.
(2)原式=17-8×(-
| 1 |
| 2 |
(3)原式=-10+8-6=-8;
(4)原式=(1
| 1 |
| 24 |
| 5 |
| 24 |
| 1 |
| 24 |
| 1 |
| 24 |
(5)原式=(7+3-5)×(-2
| 2 |
| 5 |
| 12 |
| 5 |
(6)原式=-
| 9 |
| 16 |
| 27 |
| 8 |
| 1 |
| 6 |
=
| 9 |
| 16 |
| 8 |
| 27 |
| 1 |
| 6 |
=
| 1 |
| 2 |
练习册系列答案
相关题目