题目内容
有理数混合运算.
(1)4+(-2)2×2-(-36)÷4
(2)(-10)÷(-
)×5
(3)[1-(1-0.5×
)]×[2-(-3)2]
(4)(-24)×(
-
+
)+(-3)2÷(-2)
(1)4+(-2)2×2-(-36)÷4
(2)(-10)÷(-
| 1 |
| 5 |
(3)[1-(1-0.5×
| 1 |
| 3 |
(4)(-24)×(
| 1 |
| 8 |
| 1 |
| 3 |
| 1 |
| 4 |
(1)原式=4+4×2+36÷4=4+8+9=21;
(2)原式=(-10)×(-5)×5=250;
(3)原式=[1-(1-
×
)]×(2-9)=
×(-7)=-
;
(4)原式=(-24)×
-(-24)×
++(-24)×
+9÷(-2)=-3+8-6-4.5=-5.5.
(2)原式=(-10)×(-5)×5=250;
(3)原式=[1-(1-
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 6 |
| 7 |
| 6 |
(4)原式=(-24)×
| 1 |
| 8 |
| 1 |
| 3 |
| 1 |
| 4 |
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