题目内容
计算．
①92×13+28
②4.2÷1.5-0.36
③78×
④1÷
-
÷1
⑤
×5÷
×5
⑥2-
÷
⑦36×（
+
）
①92×13+28
②4.2÷1.5-0.36
③78×
| 3 |
| 79 |
④1÷
| 1 |
| 4 |
| 1 |
| 4 |
⑤
| 2 |
| 5 |
| 2 |
| 5 |
⑥2-
| 8 |
| 15 |
| 4 |
| 9 |
⑦36×（
| 1 |
| 6 |
| 2 |
| 3 |
①92×13+28
=1196+28，
=1224；
②4.2÷1.5-0.36
=2.8-0.36，
=2.44；
③78×
=（79-1）×
，
=79×
-1×
，
=3-
，
=2
；
④1÷
-
÷1
=4-
，
=3
；
⑤
×5÷
×5
=
÷
×5×5，
=1×5×5，
=25；
⑥2-
÷
=2-
，
=
；
⑦36×（
+
）
=36×
+36×
，
=6+24，
=30．
=1196+28，
=1224；
②4.2÷1.5-0.36
=2.8-0.36，
=2.44；
③78×
| 3 |
| 79 |
=（79-1）×
| 3 |
| 79 |
=79×
| 3 |
| 79 |
| 3 |
| 79 |
=3-
| 3 |
| 79 |
=2
| 76 |
| 79 |
④1÷
| 1 |
| 4 |
| 1 |
| 4 |
=4-
| 1 |
| 4 |
=3
| 3 |
| 4 |
⑤
| 2 |
| 5 |
| 2 |
| 5 |
=
| 2 |
| 5 |
| 2 |
| 5 |
=1×5×5，
=25；
⑥2-
| 8 |
| 15 |
| 4 |
| 9 |
=2-
| 6 |
| 5 |
=
| 4 |
| 5 |
⑦36×（
| 1 |
| 6 |
| 2 |
| 3 |
=36×
| 1 |
| 6 |
| 2 |
| 3 |
=6+24，
=30．
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