题目内容
(1)26+(-14)+(-16)+8
(2)(-5.5)+(-3.2)-(-2.5)-4.8
(3)(-8)×(-25)×(-0.02)
(4)(
-
+
-
)×(-36)
(5)(-1)÷(
-
)
(6)
+(-3)2×(-
)
(7)8-23÷(-4)3-
(8)100÷(-2)2-(-2)÷(-
).
(2)(-5.5)+(-3.2)-(-2.5)-4.8
(3)(-8)×(-25)×(-0.02)
(4)(
| 1 |
| 2 |
| 5 |
| 9 |
| 5 |
| 6 |
| 7 |
| 12 |
(5)(-1)÷(
| 1 |
| 3 |
| 1 |
| 2 |
(6)
| 1 |
| 2 |
| 1 |
| 2 |
(7)8-23÷(-4)3-
| 1 |
| 8 |
(8)100÷(-2)2-(-2)÷(-
| 2 |
| 3 |
(1)26+(-14)+(-16)+8=26+8-30=4;
(2)(-5.5)+(-3.2)-(-2.5)-4.8=(-5.5)+(-3.2)+2.5+(-4.8)=(-3.2)+(-4.8)+(-5.5)+2.5=-8-3=-11;
(3)(-8)×(-25)×(-0.02)=200×(-0.02)=-4;
(4)(
-
+
-
)×(-36)=
×(-36)-
×(-36)+
×(-36)-
×(-36)=-18+20-30+21=-7;
(5)(-1)÷(
-
)=(-1)×(-6)=6;
(6)
+(-3)2×(-
)=
+9×(-
)=
-
=-4;
(7)8-23÷(-4)3-
=8-8÷(-64)-
=8+
-
=8;
(8)100÷(-2)2-(-2)÷(-
)=100÷4-(-2)×(-
)=25-3=22.
(2)(-5.5)+(-3.2)-(-2.5)-4.8=(-5.5)+(-3.2)+2.5+(-4.8)=(-3.2)+(-4.8)+(-5.5)+2.5=-8-3=-11;
(3)(-8)×(-25)×(-0.02)=200×(-0.02)=-4;
(4)(
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| 2 |
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| 9 |
| 5 |
| 6 |
| 7 |
| 12 |
| 1 |
| 2 |
| 5 |
| 9 |
| 5 |
| 6 |
| 7 |
| 12 |
(5)(-1)÷(
| 1 |
| 3 |
| 1 |
| 2 |
(6)
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 2 |
| 9 |
| 2 |
(7)8-23÷(-4)3-
| 1 |
| 8 |
| 1 |
| 8 |
| 1 |
| 8 |
| 1 |
| 8 |
(8)100÷(-2)2-(-2)÷(-
| 2 |
| 3 |
| 3 |
| 2 |
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