题目内容
细心算一算
①4.8-(-1.2)+(-6);
②(-
)×(-1
)÷(-2
);
③1-(5-7)÷(-3)3;
④-62×(
-
)-23.
①4.8-(-1.2)+(-6);
②(-
| 3 |
| 4 |
| 1 |
| 2 |
| 1 |
| 4 |
③1-(5-7)÷(-3)3;
④-62×(
| 2 |
| 3 |
| 1 |
| 2 |
①4.8-(-1.2)+(-6)
=4.8+1.2-6
=0;
②(-
)×(-1
)÷(-2
)
=-
×
×
=-
;
③1-(5-7)÷(-3)3
=1-(-2)÷(-27)
=1-
=
;
④-62×(
-
)-23
=-36×
-8
=-14.
=4.8+1.2-6
=0;
②(-
| 3 |
| 4 |
| 1 |
| 2 |
| 1 |
| 4 |
=-
| 3 |
| 4 |
| 3 |
| 2 |
| 4 |
| 9 |
=-
| 1 |
| 2 |
③1-(5-7)÷(-3)3
=1-(-2)÷(-27)
=1-
| 2 |
| 27 |
=
| 25 |
| 27 |
④-62×(
| 2 |
| 3 |
| 1 |
| 2 |
=-36×
| 1 |
| 6 |
=-14.
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