2013-2014學年五年級(上)寒假奧數(shù)訓練:分數(shù)巧算
發(fā)布:2024/12/9 8:30:2
一、課堂精講
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1.
×(6.75÷16-2.4+4512×214)-125-0.875.18組卷:49引用:1難度:0.9 -
2.求下面所有分數(shù)的和:
;…;11;12,22,12;13,23,33,23,13;14,24,34,44,34,24,14.11991,21991,…,19891991,19901991,19911991,19901991,19891991,…,11991組卷:74引用:2難度:0.7 -
3.計算:
.0.5×236×59119組卷:35引用:1難度:0.9 -
4.238÷238
=.238239組卷:81引用:2難度:0.9 -
5.計算:125
÷41.120組卷:58引用:1難度:0.9
二、本講隨堂練習
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14.計算:
.34+328+370+3130組卷:66引用:2難度:0.3 -
15.計算:
.12+16+112+120+130+142組卷:48引用:5難度:0.3