题目内容
简算
| 384+98×25×4 | 724+26×24+724. |
(1)384+98×25×4,
=384+98×(25×4),
=384+98×100,
=384+9800,
=10184;
(2)724+26×24+724,
=724+624+724,
=700+24+600+24+700+24,
=(700+700+600)+24×3,
=2000+72,
=2072.
=384+98×(25×4),
=384+98×100,
=384+9800,
=10184;
(2)724+26×24+724,
=724+624+724,
=700+24+600+24+700+24,
=(700+700+600)+24×3,
=2000+72,
=2072.
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