172.4×6.2+2724×0.38简便运算
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172.4×6.2+2724×0.38简便运算
172.4×6.2+2724×0.38
简便运算
172.4×6.2+2724×0.38简便运算
172.4×6.2+2724×0.38
=1724×0.62+(1000+1724)×0.38
=1724×0.62+1724×0.38+1000×0.38(方法:乘法分配律)
=1724×(0.62+0.38)+380(方法:乘法结合律)
=1724×1+380
=2104
172.4×6.2+2724×0.38
=1724×0.62+(1000+1724)×0.38
=1724×0.62+1724×0.38+1000×0.38
=1724×(0.62+0.38)+380
=1724×1+380
=2104
1068.88+1035.12 =2104
172.4×6.2+2724×0.38简便运算
简便计算:172.4乘6.2+2724乘0.38=?
75*4.7+15.9*25和6.11+9.22+8.33+7.44+5.55+4.56+3.67+2.78+1.89和172.4*6.2+2724*0.38怎么用简便方法解答
172.4*6.2+1724*0.38怎样写?
用运算律简算 172.4乘6.2加1724乘0.38
2000×200320032003+2003×20020002000 172.4×6.2+27247×0.38简便计算
172.4乘以6.2加1724乘以0.38的简便运算
1、75*4.7+15.9*252、28.67*67+32*286.7+573.4*0.053、172.4*6.2+2724*0.384、(图)
172.4×6.2+17.24×38,用简便方法,
0.38×6.2-0.12×3.8简便计算,
请讲几道奥数题199.7+997.7+977.1-1997.71=7.2*61.3+73.8*2.8=(78.6-0.786*25+0.75*21.4)/15*2001=172.4*6.2+1724*0.38=36*2.54+1.8*49.2=3.6*31.4+68.9*6.4=999+9999+9999*9999+99999/99999
75.2乘0.38+7.52乘6.2怎么简算一个是75.2和7.52不要混~要数学比较好滴~
0.38:19化简比
解方程:x—0.38x=6.2
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