题目内容
计算:
(1)1.78+3.64-5.25-0.2+0.3-0.33.
(2)1-
+
+
-
-3
(3)(-
+
)÷(-
)×
+(-1)100
(4)-102-[(1-
)×
][2-(-3)2]
(5)-2-{8+(-1)2-[(-4)×2÷(-2)+
×(-6)]}
(6)
+|-(-
)2-
|÷
-|-2-3|-
(1)1.78+3.64-5.25-0.2+0.3-0.33.
(2)1-
| 9 |
| 14 |
| 8 |
| 21 |
| 1 |
| 14 |
| 17 |
| 35 |
| 6 |
| 7 |
(3)(-
| 5 |
| 6 |
| 2 |
| 3 |
| 7 |
| 12 |
| 7 |
| 2 |
(4)-102-[(1-
| 1 |
| 2 |
| 1 |
| 3 |
(5)-2-{8+(-1)2-[(-4)×2÷(-2)+
| 5 |
| 6 |
(6)
| 1 |
| -0.32 |
| 1 |
| 5 |
| 1 |
| 22 |
| 1 |
| 52 |
| 1 |
| 0.2 |
(1)原式=5.42-5.25-0.2+0.3-0.33,
=0.17-0.2+0.3-0.33,
=-0.03+0.3-0.33,
=0.27-0.33,
=-0.06;
(2)原式=-
+
+1-3
+
-
,
=-
-
+
-
,
=-
+
-
,
=-
-
,
=-
-
,
=-
-
,
=-
;
(3)原式=(-
)÷(-
)×
+(-1)100,
=
×
×
+1,
=1+1,
=2;
(4)原式=-102-[
×
][2-32],
=-100-
×(2-9),
=-100-
×(-7),
=-100+
,
=-98
;
(5)原式=-2-{8+1-[-8÷(-2)-
×6]},
=-2-{9+1},
=-2-10,
=-12;
(6)原式=
+|-
-
|÷
-|-5|-
,
=-
+
×25-5-5,
=-
+
-10,
=-
,
=-
.
=0.17-0.2+0.3-0.33,
=-0.03+0.3-0.33,
=0.27-0.33,
=-0.06;
(2)原式=-
| 9 |
| 14 |
| 1 |
| 14 |
| 6 |
| 7 |
| 8 |
| 21 |
| 17 |
| 35 |
=-
| 8 |
| 14 |
| 20 |
| 7 |
| 8 |
| 21 |
| 7 |
| 35 |
=-
| 24 |
| 7 |
| 8 |
| 21 |
| 7 |
| 35 |
=-
| 64 |
| 21 |
| 7 |
| 35 |
=-
| 64×5 |
| 21×5 |
| 7×3 |
| 35×3 |
=-
| 320 |
| 105 |
| 21 |
| 105 |
=-
| 341 |
| 105 |
(3)原式=(-
| 1 |
| 6 |
| 7 |
| 12 |
| 7 |
| 2 |
=
| 1 |
| 6 |
| 12 |
| 7 |
| 7 |
| 2 |
=1+1,
=2;
(4)原式=-102-[
| 1 |
| 2 |
| 1 |
| 3 |
=-100-
| 1 |
| 6 |
=-100-
| 1 |
| 6 |
=-100+
| 7 |
| 6 |
=-98
| 5 |
| 6 |
(5)原式=-2-{8+1-[-8÷(-2)-
| 5 |
| 6 |
=-2-{9+1},
=-2-10,
=-12;
(6)原式=
| 1 |
| -0.09 |
| 1 |
| 25 |
| 1 |
| 4 |
| 1 |
| 25 |
| 1 |
| 0.2 |
=-
| 100 |
| 9 |
| 29 |
| 100 |
=-
| 100 |
| 9 |
| 29 |
| 4 |
=-
| 400-29×9+360 |
| 36 |
=-
| 499 |
| 36 |
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