2021-2022第二学期小学数学
五年级参考答案
填空题(每空1分,共25分)
20 12 2. 3 60 5.8 625 3. 2
5. 6 90 6. > < = 7. 男职工人数 8. 15 () 9. 54 27 10 . 20 10 11. 96
判断题(8分)
√ 2、× 3、× 4、√ 5、× 6、× 7、√ 8、×
选择题(8分)
C 2、B 3、C 4、A 5、B 6、A 7、C 8、B
计算题 (4+12+9=25)
按要求画图(6分) 略
统计(2+3=5分)
提示:上课开始的时候注意力很不集中;课开始的10分钟学生的注意力逐渐提升;上课10-20分钟时段学生的注意力最集中;上课20分钟后学生的注意力逐渐下降;一节课学生注意力非常集中的只有10分钟。
提示: 学生要集中精力,认真听讲,特别要关注珍惜课开始后的5-25分钟时间段的宝贵时间段,珍惜每一分钟。
教师要熟悉学生课上注意力集中变化规律,抓住时机讲解重难点问题,不要随意调整讲解时间段,也不要出现“满堂灌”的现象。
七、解决问题(4+4+5+5=18分)
1. 15÷(-)·········································································(2分)·
=270(吨)····································································(1分)
答:略··············································································(1分)
2.120×(1+)·······································································(2分)
=150(棵)················································································(1分)
答:略··············································································(1分)
3.(38+35)-15·······································································(3分)
=58(人)·············································································(1分)
答:略.·················································································(1分)
4.(45÷9)×(30÷6)×(15÷3)·······································(3分)
=125(块) ···········································································(1分)
答:略························································································(1分)