作业帮2.25×0.16+264×0.0225+5.2×2.25+0.225×20等于多少?
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2.25×0.16+264×0.0225+5.2×2.25+0.225×20等于多少?
2.25×0.16+264×0.0225+5.2×2.25+0.225×20等于多少?
2.25×0.16+264×0.0225+5.2×2.25+0.225×20等于多少?
2.25×0.16+264×0.0225+5.2×2.25+0.225×20
=2.25×0.16+2.25x2.64+5.2×2.25+2.25×2
=2.25x(0.16+2.64+5.2+2)
=2.25x(2.8+5.2+2)
=2.25x10
=22.5
2.25×0.16+264×0.0225+5.2×2.25+0.225×20等于2.25×(0.16+2.64+5.2+2)=2.25*10=22.5
2.25×0.16+264×0.0225+5.2×2.25+0.225×20等于多少?
2.25*0.16+264*0.0225+5.2*2.25+0.225*20=
2.25*0.16+264*0.0225+5.2*2.25+0.225*20
求4道数学题的简便运算答案（3.6×0.75×1.2）÷（1.5×24×0.18）26.44÷0.4+13.22+1.826.39×36+26.39×83-263.9×1.92.25×0.16+264×0.0225+52×2.25+0.225×2
小数的简便运算1、（0.39*0.7）/（0.56*3.9） （12.5*2.5*3.2）/（50*1.6*2.5）2、26.39*36+26.39*83-263.9*1.9 18.9*178.178+0.49-17.8*189.1893、2.25*0.16+264*0.0225+5.2*2.25+0.225*204、若a=0.00...025,b=0.00...04,2012个0 2013个0-------
数学提问五年级上册智慧冲浪2.25*0.16＋264＊0．225＋5．2*2.25+0.225*20=?
25x0.16+264x0.0225+5.2x2.25+0.0225x20!
2.56*0.16+264*0.0256+5.2*2.56+0.256*20 简便方法
0.16×5.96+264×0.0596+72×0.596简便计算
简算 6.25*0.16+264*0.0625+5.2*6.25+0.625*20 是怎样算的?
6.25*0.16+264*0.0625+5.24*6.25+0.625*20的简便计算
简便计算：6.25×0.16＋264×0.0625＋52×0.0625＋62.5×0.2
√0.0225等于√0.225呢?√2.25呢?√22.5呢?√225呢?√2250呢?√22500呢?√0.02,√200,√20000,√20呢?
帮帮我求下列各数的平方根1 64 1600 0.0081 2.25 100分之49 144分之25 729 324 0.81 0.0225 64分之25 49分之16
264*97+4*264
0.0225×－0.0225×Χ0.2＝540（求解×值）
19.76除以0.0225等于多少
智慧冲浪 2.25x0.16+264x0.0225+5.2x2.25+0.225x20 脱式计算,一定是最最最简便的方法( ⊙ o ⊙