What do cars, toys, people, and jelly beans have in common? They can all be estimated. Two friends try out their estimating skills and find out that estimating can have real rewards--especially when there's a contest to enter
來玩數與量推理
分數與小數的運算祕密
加減乘除的算術魔法
奇妙的數與量
Lemonade for sale
A fair bear share
Spunky monkeys on ...
The sundae scoop
Let's fly a kite
Every buddy counts
Elevator magic
Monster musical ch ...
Animals on board
Probably pistachio
Circus shapes