3.17数学作业公示

日期

3.17

年级

三

学科

数学

预计作业时长

10分钟

年级主任审核签字

解芳

作业内容

作业题目

第4单元 整理与复习

基础必做题：

具体内容：在圈里填上＞、＜ 和＝  。

7千米    690米        18分米   20厘米

2000米   2千米       5米   510厘米

4200米   4千米       800厘米   10米                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        

提升选做题：张村到李庄的公路长是260千米。一辆长途客车从张村开往李庄11:30到达。这辆长途客车平均每小时行驶多少千米?

部分解答参考建议

提升题：时间是 11:30-7:30= 4 小时   

260÷4= 65  (千米)

答：客车平均每小时行驶65千米。                     

备注：基础题必做，提升题选做。

主管领导签字：    时玉芳