摘要:6.计算:10.12-10.1×2.2+1.21= .
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计算:
(1)(-5)-(+3)+(-9)-(-7)+
;
(2)10-23+32-17-21+45;
(3)(-3
)+(+2
)-(+2
)-(-7
);
(4)-9.2-(7.1)-(-3)+6
+(+2.9);
(5)3.6+41.8-12
-11-51
;
(6)-
-
-
+2
-
-
.
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(1)(-5)-(+3)+(-9)-(-7)+
| 1 |
| 2 |
(2)10-23+32-17-21+45;
(3)(-3
| 5 |
| 6 |
| 2 |
| 5 |
| 1 |
| 6 |
| 3 |
| 5 |
(4)-9.2-(7.1)-(-3)+6
| 1 |
| 5 |
(5)3.6+41.8-12
| 3 |
| 5 |
| 4 |
| 5 |
(6)-
| 1 |
| 8 |
| 2 |
| 5 |
| 4 |
| 9 |
| 3 |
| 8 |
| 3 |
| 5 |
| 5 |
| 9 |
计算:
(1)(+
)+(-
)
(2)3-(-5)
(3)(-1
)×7
(4)(-12)÷(-
)
(5)8×(-7)×0÷(-5)
(6)-21+(-14)-(-18)-15
(7)-3.5÷
×|-
|
(8)1÷(
-
)×
(9)(-7)×(-5)-60÷(-15)
(10)(
+
-
)×(-12)
(11)(-13)×
+(-7)×
(12)(-39
)÷3.
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(1)(+
| 2 |
| 7 |
| 3 |
| 7 |
(2)3-(-5)
(3)(-1
| 2 |
| 7 |
(4)(-12)÷(-
| 1 |
| 4 |
(5)8×(-7)×0÷(-5)
(6)-21+(-14)-(-18)-15
(7)-3.5÷
| 7 |
| 8 |
| 3 |
| 4 |
(8)1÷(
| 1 |
| 6 |
| 1 |
| 3 |
| 1 |
| 6 |
(9)(-7)×(-5)-60÷(-15)
(10)(
| 1 |
| 4 |
| 1 |
| 6 |
| 1 |
| 2 |
(11)(-13)×
| 4 |
| 5 |
| 4 |
| 5 |
(12)(-39
| 6 |
| 7 |
计算:
(1)(-10)+15;
(2)(-0.9)+(-3.6);
(3)0+(-4.5);
(4)15-(-7);
(5)(-2.7)-(+2.3);
(6)
-
;
(7)18+(-12)+(-21)+(+12);
(8)0.35+(-0.6)+0.25+(-5.4);
(9)-26+43-24+13-46;
(10)(-3
)+12.5+(-16
)+(-2.5).
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(1)(-10)+15;
(2)(-0.9)+(-3.6);
(3)0+(-4.5);
(4)15-(-7);
(5)(-2.7)-(+2.3);
(6)
| 1 |
| 3 |
| 1 |
| 4 |
(7)18+(-12)+(-21)+(+12);
(8)0.35+(-0.6)+0.25+(-5.4);
(9)-26+43-24+13-46;
(10)(-3
| 3 |
| 7 |
| 4 |
| 7 |
计算:
=
;
= .
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