天南地北话数学(小学3年级)

找生活中的数学 1
运动会报名有学问 ···············.2
春游中的数学问题 ···············.7
参观科技馆 ······················.12
到底谁的比赛成绩好？ ·······.17
算算安安在校的时间 ··········.21
校园足球比赛中的奥秘 ·······.25
苗圃有多大？ ···················.29
京张高铁为冬奥启航 ··········.36
说说 ······················.41
北京2022 年 ············.46
奥运会中的数学问题 ··········.51
倍倍南瓜 ·························.56
速生长的豆蔓 ················.61
说生活中的数学 65
铺地砖的学问 ···················.66
小“面积”大“学问” ·········.72
核酸检测中的时间问题 ·······.77
算算飞行时间的长短 ··········.81
为什么不相等？ ················.88
我家用的水 ······················.93
我帮妈妈算水费 ················.98
装修中的数学 ··················.102
估一估　算一算 ···············.106
网上购物 ························.110
节约时间 ························.114
数天数 ···························.118
怎样围菜地面积 大？ ······.121
用生活中的数学 126
有趣的旅行 ·····················.127
乘车也要讲学问 ···············.132
北京动物园 ·····················.137
都博物馆中的数学 ·········.142
大自然中的“指南针” ········.145
周末一日游 ·····················.150
“数”说重庆火锅 ··············.155
乘坐火车时的数学问题 ······.159
非洲象的年龄问题 ············.164
逛公园 ···························.169
图书编码中的秘密 ············.173
在盲盒店选礼物 ···············.179
年龄那点儿事 ··················.184