题目内容
计算:(1)1
+(-1
)+4
-4
(2)-22+3×(-1)4-(-4)×5
(3)-14×
÷(-6)-
(4)用简便方法计算:(-36
)÷9.
| 2 |
| 3 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 2 |
(2)-22+3×(-1)4-(-4)×5
(3)-14×
| 15 |
| 4 |
| 9 |
| 8 |
(4)用简便方法计算:(-36
| 9 |
| 11 |
(1)原式=1
-1
+4
-4
=1
+4
-1
-4
=6-6
=0.
(2)原式=-4+3×1-(-20)
=-4+3+20
=19.
(3)原式=-4×
×(-
)-
=
-
=
.
(4)原式=(-36-
)×
=-36×
-
×
=-4-
=-4
.
| 2 |
| 3 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 2 |
=1
| 2 |
| 3 |
| 1 |
| 3 |
| 1 |
| 2 |
| 1 |
| 2 |
=6-6
=0.
(2)原式=-4+3×1-(-20)
=-4+3+20
=19.
(3)原式=-4×
| 15 |
| 4 |
| 1 |
| 6 |
| 9 |
| 8 |
=
| 5 |
| 2 |
| 9 |
| 8 |
=
| 11 |
| 8 |
(4)原式=(-36-
| 9 |
| 11 |
| 1 |
| 9 |
=-36×
| 1 |
| 9 |
| 9 |
| 11 |
| 1 |
| 9 |
=-4-
| 1 |
| 11 |
=-4
| 1 |
| 11 |
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