256 7×25-85怎么算用四年级数学综合算式题算

来源：蜘蛛抓取(WebSpider) 时间：2016-03-03 06:30 标签： 先填空再列综合算式
计算下面各题，能用简便算法的用简便算法
12.25-3.1+0.85-6.17 2.65×1.7+1.35×1.7 6_百度知道
计算下面各题，能用简便算法的用简便算法
12.25-3.1+0.85-6.17 2.65×1.7+1.35×1.7 6
65×1.1 0.25-3.9×10，能用简便算法的用简便算法
12.7 6.1+0.35×1.7+1.17 2.85-6
计算下面各题.125×25×80×0
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（1）12，=69+0.7.7+1，=13.17，=3.1-3.1.1-6.1+0，=4×1.85-6，=10×10.35）×1.125×80）×（25×0.4.9×10+6.9×10，=6，=（2；（2）2，=10-6.85-3；（3）6，=（0.35×1，=6.65+1.17，=12.125×25×80×0.69.17.4）.7.25+0，=69；（4）0.1-6.1.69.17.9×0.83.65×1.7.25-3
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