人教版小学数学三年级下册第八单元 我们的校园
年级：三年级 学科：数学 类型：同步测试 来源：91题库
一、计算题（共1小题）
1、百灵口算
20×40= | 50×40= |
70×40= | 13×4= |
14×4= | 15×4= |
606÷6= | 612÷6= |
618÷6= | 624÷6= |
二、解决问题（共3小题）
1、学校新建了一个室内运动场，长是28米，宽是15米。地面要铺上地砖。下面是地砖的价目表。
地砖面积 | 地砖价格 |
4平方分米 | 3元 |
5平方分米 | 4元 |
6平方分米 | 5元 |
(1)有多少种不同的铺法?(仅选择单种地砖)各需要多少钱?
(2)选用哪种地砖最省钱?
2、三年级的4个班要进行羽毛球比赛，每场比赛大约要用20分钟，准备10分钟，下面是比赛时间安排。
对阵 | 时间 | 地点 |
A组：三（1）班----三（2）班 | 15:40~16:00 | 东比赛场 |
B组：三（3）班----三（4）班 | 16:10~16:30 | 西比赛场 |
A组胜者—B组胜者 | 16:40~17:00 | 东比赛场 |
颁奖 | 17:10~17:20 | 西比赛场 |
(1)用普通计时法表示比赛时间
(2)从开赛到颁奖结束一共经过了多长时间
3、用边长20厘米的铁丝围成长方形或正方形(边长为整厘米)怎样围围成的图形面积最大?面积最大是多少·？
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