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计算下面各题.(能简算的要简算)(1)4.7+2.58-2.3;(2)51.41-19.25-10.75;(3
计算下面各题.(能简算的要简算)(1)4.7+2.58-2.3;(2)51.41-19.25-10.75;(3)37×108+2680÷67;(4)72.8-3.64+1...
计算下面各题.(能简算的要简算)(1)4.7+2.58-2.3;(2)51.41-19.25-10.75;(3)37×108+2680÷67;(4)72.8-3.64+10.76.
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(1)4.7+2.58-2.3 =7.28-2.3 =4.98; (2)51.41-19.25-10.75 =51.41-(19.25+10.75) =51.41-30 =21.41; (3)37×108+2680÷67 =3996+40 =4036; (4)72.8-3.64+10.76 =69.16+10.76 =79.92. |
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