(1.992+19.92+199.2)/0.111 简便计算
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(1.992+19.92+199.2)/0.111 简便计算
(1.992+19.92+199.2)/0.111 简便计算
(1.992+19.92+199.2)/0.111 简便计算
(1.992+19.92+199.2)/0.111
=(1.992+1.992*10+1.992*100)/0.111
=1.992*(1+10+100)/0.111
=1.992*111/0.111
=1992*(0.111/0.111 )
=1992
(1.992+19.92+199.2)/0.111 简便计算
简便运算 2008+200.8+20.08+200.8+1992+199.2+19.92+1.992
2008+200.8+20.08+2.008+199.2+19.92+1.992=
(2008+200.8+20.08+2.008+1992+199.2+19.92+1.992)怎么写?
2008+200.8+20.8+2.008+1992+199.2+19.92+1.992 简便方法计算
遇到一些题不会,是简算的,望解答遇到一些简算题不会,请各位帮忙一下(要过程)(1)8.88*12.5(2)2008*20072007-2006*20082008(3)2008+200.8+20.08+2.008+1992+199.2+19.92+1.992
199.8×19.99-19.99×199.2
巧算0.991+1.992+2.993+3.994
计算:1.992-1.98*1.99+0.992
1993×199.2-1992×199.1=( )
1.2+1.92+1.992+.+1.99.+1.99..怎样计算
1.991+1.992+1.993+...+2.001+2.002+2.003
199.4*19.93-199.3*19.92的简便计算
1993乘199.2-1992乘199.1思路
1993乘199.2-1992乘199.
199.4乘19.93-199.3乘19.92 递等式199.4乘19.93-199.3乘19.92递等式
求教数学题:1.993*1993000+19.92*199200-199.3*19920-1992*1991
1993乘199.2-1992乘199.1求思路根剧