题目内容
脱式计算:
| 9000+400+20+8= | 4000000+50000+4= | 800000+2000+600+9=. |
9000+400+20+8,
=9400+20+8,
=9420+8,
=9428;
4000000+50000+4,
=4050000+4,
=4050004;
800000+2000+600+9,
=802000+600+9,
=802600+9,
=802609.
=9400+20+8,
=9420+8,
=9428;
4000000+50000+4,
=4050000+4,
=4050004;
800000+2000+600+9,
=802000+600+9,
=802600+9,
=802609.
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