题目内容
1997×0.71+11×7
+2222×0.29=______．
| 1 |
| 4 |
1997×0.71+11×7
| 1 |
| 4 |
=1997×0.71+11×7.25+2222×0.29
=1997×0.71+11×7.25+1997×0.29+225×0.29
=1997×（0.71+0.29）+225×0.29+10×7.25+7.25
=1997×（0.71+0.29）+225×0.29+72.5+0.29×25
=1997+72.5+0.29×（225+25）
=1997+72.5+72.5
=2142
故填：2142．
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+2222×0.29=________．