题目内容
47×67+352-51×59+0.0
+14.9
=______.
| . |
| 7 |
| . |
| 2 |
47×67+352-51×59+0.0
+14.9
=3149+1225-3009+
+14.9+
=3149+1225-3009+14.9+(
+
)
=3149+1225-3009+14.9+0.1
=(3149-3009)+(14.9+0.1)+1225
=140+15+1225
=140+(15+1225)
=140+1240
=1380
故答案为:1380.
| . |
| 7 |
| . |
| 2 |
=3149+1225-3009+
| 7 |
| 90 |
| 2 |
| 90 |
=3149+1225-3009+14.9+(
| 7 |
| 90 |
| 2 |
| 90 |
=3149+1225-3009+14.9+0.1
=(3149-3009)+(14.9+0.1)+1225
=140+15+1225
=140+(15+1225)
=140+1240
=1380
故答案为:1380.
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