计算:①18.3×0.25+5.3÷0.4-7.13=______; ②12004
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计算:
①18.3×0.25+5.3÷0.4-7.13=______;
②
①18.3×0.25+5.3÷0.4-7.13=______;
②
1 |
2004
①18.3×0.25+5.3÷0.4-7.13
=4.575+13.25-7.13 =17.825-7.13 =10.695; ② 1 20043−2003×(20042+2005) = 1 20042×2004−2003×20042−2003×2005 = 1 20042×(2004−2003)−2003×2005 = 1 20042−2003×2005 = 1 20042−2003×(2004+1) = 1 20042−2003×2004−2003 = 1 2004×(2004−2003)−2003 = 1 2004−2003 =1. 故答案为:10.695,1.
计算:①18.3×0.25+5.3÷0.4-7.13=______; ②12004
简便计算.①111111÷1111×3333=______②6.25×0.16+2.64×0.0625+5.2×6.25
计算:0.125×0.25×0.5×64=______.
计算:(-0.25)2013×42012=______.
计算:9999×4444÷6666=______.
计算:0.15÷2.1×56=______.
计算:5002-499×501=______.
计算:1232-122×124=______.
计算:1001×1001-1001=______.
简便计算:101×99=______.
计算:888×999=______.
计算:lg2+lg5=______.
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