234*12.1+235*42.2-135*54.3235*12.1+235*42.2-135*54.3
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234*12.1+235*42.2-135*54.3235*12.1+235*42.2-135*54.3234*12.1+235*42.2-135*54.3235*12.1+235*42.2-135*
234*12.1+235*42.2-135*54.3235*12.1+235*42.2-135*54.3
234*12.1+235*42.2-135*54.3
235*12.1+235*42.2-135*54.3
234*12.1+235*42.2-135*54.3235*12.1+235*42.2-135*54.3
234*12.1+235*42.2-135*54.3
=(235-1)*12.1+235*42.2-135*54.3
=235*12.1-12.1+235*42.2-135*54.3
=(235*12.1+235*42.2)-135*54.3-12.1
=235*(12.1+42.2)-135*54.3-12.1
=235*54.3-135*54.3-12.1
=(235-135)*54.3-12.1
=100**54.3-12.1
=5430-12.1
=5417.9
235*12.1+235*42.2-135*54.3
=235*(12.1+42.2)-135*54.3
=54.3*(235-135)
=5430
我是最先作答的哦,不明白欢迎追问.
234×12.1+235×42.2-135×54.3
=2831.4+9917+7330.5
=20078.9
234*12.1+235*42.2-135*54.3235*12.1+235*42.2-135*54.3
235*12.1+235*42.2-135*54.3=?
235×12.1+235×42.2-135×54.3 (简便算法)
235*12.1+235*42.2-135*54.3 用简便方法计算
235*12.1+235*42.2-125*54.3 用简便方法计算
几道简算题51.53.5×35.3+53.5×43.2+78.5×46.52.235×12.1++235×42.2-135×54.33.3.75×735-3/8×5730+16.2×62.5
第一题:53.5*35.3+53.5*43.2+78.5*46.5第二题:235*12.1+235*42.2-135*54.3第三题:3.75*735-8分之3*5730+16.2*62.5 谁能把三道题解出来我怒赞
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