题目内容
计算:
①8+(-10)+(-2)-(-5)
②(-5)÷(-
)
③-36÷(-6)-72÷(-8)
④8×(-
)÷|-16|
⑤(-24)×(-
+
-
)
⑥(-
)+(-
)-(-1
)+(+1.5)
⑦18×(-
)+13×
-4×
⑧-32-[1-(-2)3]÷(-3)
①8+(-10)+(-2)-(-5)
②(-5)÷(-
| 5 |
| 4 |
③-36÷(-6)-72÷(-8)
④8×(-
| 4 |
| 5 |
⑤(-24)×(-
| 1 |
| 2 |
| 3 |
| 4 |
| 1 |
| 3 |
⑥(-
| 1 |
| 2 |
| 3 |
| 4 |
| 3 |
| 4 |
⑦18×(-
| 2 |
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
⑧-32-[1-(-2)3]÷(-3)
①8+(-10)+(-2)-(-5)
=8-10-2+5
=1;
②(-5)÷(-
)=4;
③-36÷(-6)-72÷(-8)
=6+9
=15;
④8×(-
)÷|-16|
=8×(-
)÷16
=-10÷16
=-
;
⑤(-24)×(-
+
-
)
=12-18+8
=2;
⑥(-
)+(-
)-(-1
)+(+1.5)
=(-
+1.5)+(-
+1
)
=1+1
=2;
⑦18×(-
)+13×
-4×
=(-18+13-4)×
=-9×
=-6;
⑧-32-[1-(-2)3]÷(-3)
=-9-[1+8]÷(-3)
=-9-9÷(-3)
=-9+3
=-6.
=8-10-2+5
=1;
②(-5)÷(-
| 5 |
| 4 |
③-36÷(-6)-72÷(-8)
=6+9
=15;
④8×(-
| 4 |
| 5 |
=8×(-
| 4 |
| 5 |
=-10÷16
=-
| 5 |
| 8 |
⑤(-24)×(-
| 1 |
| 2 |
| 3 |
| 4 |
| 1 |
| 3 |
=12-18+8
=2;
⑥(-
| 1 |
| 2 |
| 3 |
| 4 |
| 3 |
| 4 |
=(-
| 1 |
| 2 |
| 3 |
| 4 |
| 3 |
| 4 |
=1+1
=2;
⑦18×(-
| 2 |
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
=(-18+13-4)×
| 2 |
| 3 |
=-9×
| 2 |
| 3 |
=-6;
⑧-32-[1-(-2)3]÷(-3)
=-9-[1+8]÷(-3)
=-9-9÷(-3)
=-9+3
=-6.
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