题目内容
455×7
| 1
|
（1）455×7
+111÷
+43.3×76，
=455×7.6+111×19.2+43.3×76，
=7.6×（455+433）+111×19.2，
=7.6×888+111×19.2，
=111×（60.8+19.2），
=111×80，
=8880；
（2）1
-[（3.62×
+6.38÷7
）×1.82-1
×0.82]，
=1
-[
×（3.62+6.82）×1.82-1
×0.82]，
=1
-[1
×（1.82-0.82）]，
=1
-1
，
=
．
| 3 |
| 5 |
| 5 |
| 96 |
=455×7.6+111×19.2+43.3×76，
=7.6×（455+433）+111×19.2，
=7.6×888+111×19.2，
=111×（60.8+19.2），
=111×80，
=8880；
（2）1
| 2 |
| 3 |
| 2 |
| 15 |
| 1 |
| 2 |
| 1 |
| 3 |
=1
| 2 |
| 3 |
| 2 |
| 15 |
| 1 |
| 3 |
=1
| 2 |
| 3 |
| 1 |
| 3 |
=1
| 2 |
| 3 |
| 1 |
| 3 |
=
| 1 |
| 3 |
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