美国小孩的方法学英语最有效

Multiplication and Division

　　乘法和除法

Multiply with 2 and 6

　　2与6的'乘法

(1) Joan buys six pairs of gloves. How many gloves in all does she buy? Solve the problem in 3 ways. Explain them.

(1) 琼买了6双手套。她总共买了多少只手套？用三种方法回答这个问题，并讲解它们。

(2) Solve each problem by addition, skip-counting and multiplication.

(2) 用加法、跳跃计数和乘法解答以下各题。

①Six houses each have six windows. How many windows are there in all?

①有6间房子，每间房都有6扇窗。请问总共有多少扇窗？

②How many legs do three frogs have?

②3只青蛙共有几条腿？

③If you have five dimes, how much money do you have?

③如果你有6个10的硬币，那么你有多少钱？

　　答 案

1.2+2+2+2+2+2= 12 She can add. (她可以用加法) 2, 4, 6, 8, 10, 12

She can skip-count. （她可以用跳数） 6×2＝12

She can multiply.（她可以用乘法）

2.①6+6+6+6+6+6=36 6,12, 18, 24, 30, 36 6×6=36

②4+4+4=12 4, 8, 12 3×4=12

③10+10+10+10+10+10=60 10, 20, 30, 40, 50, 60 10×6=60