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作业:求算式 407.2+383.2+407.2+392.2+503.2+447.2+287.2+119.2+287.2+287.2 的值.
题型:数学计算
解:
407.2+383.2+407.2+392.2+503.2+447.2+287.2+119.2+287.2+287.2
=790.4+407.2+392.2+503.2+447.2+287.2+119.2+287.2+287.2
=1197.6+392.2+503.2+447.2+287.2+119.2+287.2+287.2
=1589.8+503.2+447.2+287.2+119.2+287.2+287.2
=2093+447.2+287.2+119.2+287.2+287.2
=2540.2+287.2+119.2+287.2+287.2
=2827.4+119.2+287.2+287.2
=2946.6+287.2+287.2
=3233.8+287.2
=3521 答案:407.2+383.2+407.2+392.2+503.2+447.2+287.2+119.2+287.2+287.2=3521你的问题在这里没有得到解决?请到 热门难题 里面看看吧!