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48x12 48x52简便运算

408-12×24×52的简便运算?408-12x24x52的简便运算? 408-12x24x52 =408-12x24x(2+50) =408-12x(48+1200) =408-12x(50-2+1000+200)

129*48+12*520简便计算方法?129*48+12*520 =129*48+(12*4)*(520/4) (调整一下。一个因数扩大多少倍,另一个因数缩小相同的倍数,积不变)

8888x12 2222x52的简便方法?8888×12+2222×52 =2222×4×12+2222×52 =2222×48+2222×52 =2222×(48+52)=2222×100 =222200

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88×6+11×52的两种简便运算方法?第一种把公因数11提出来 原式=11*(8*6+52)=1100 第二种,提的彻底一点,把公因数提尽 原式=11*4*(2*6+13)

五年级计算题五年级上册,小数乘法和小数除法: 0.5×4÷0.5×4= 72-3.6÷0.4= 9.5+0.5×2= 15.8-6.8+3.2= 5.4+

11X52+44X12的简便计算方法?11X52+44X12 =11*52+11*4*12 =11*52+11*48 =11*(52+48) =11*100 =1100 乘法分配律 指两个数的和与一个

444X12 111X52的简便计算回答:原式=111×4×12+111x52 =111x48+111x52 =111x(48+52) =111x100 =11100

50道四年级简便运算题及答案是什么?1、56+31+24=(56+24)+31=80+31=111, 2、615+475+125 =615+(475+125)=615+600=1215 3、125×64 =125×8

250×52加25×48简便运算回答:250x52+25x48 =25x10x4x13+25x4x12 =100x(10x13+12) =100x142 =14200

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