Division  除法

n. 名詞

1. 分開, 分割[U][(+into)]

The compilers agreed upon a division of the textbook into twelve units. 編輯者都同意把教科書分成十二個單元。

2. 分配, 分派[U][(+between/among)]

The thieves quarrelled about the division of their stolen goods. 這些賊為分偷來的物品而爭吵。

3. (意見等的)不一致, 分裂[U][C][(+between/among)]

Division of opinion among themselves contributed to their defeat. 他們之間的意見分歧促使了他們的失敗。

4. 區域[C]
5. 部分; (機關, 公司等的)部門, 處, 課[C]
6. 【軍】師[C][G]
7. 間隔物; 分界線[C][(+between)]

They put up a division between dining room and the kitchen. 他們在飯廳和廚房之間裝了一道隔板。

8. 【數】除(法)[U]

The boy has learnt to do division. 這個小男孩已學會做除法。

9. 部分, 片段[C]

………………………………………

Long Division of Numbers - Arithmetic Basics, Ex 1

Multiplication 乘法

1. 增加; 增殖, 繁殖

The multiplication of numbers has made our club building too small. 會員的增加使得我們的俱樂部擁擠不堪。

2. 【數】乘法; 乘法運算

do multiplication 做乘法

進入視頻：

http://www.neok12.com/php/watch.php?v=zX584d6c60547d6f5e6d0673&t=Multiplication

Subtraction 減法

subtraction  減; 減算

When You Subtract With a Pirate (math song for kids)

addition  加

KK [əˋdɪʃən] DJ [əˋdiʃən]

1. 加, 附加[U][(+to)]

n. 名詞

1. 加, 附加[U][(+to)]

The addition of fruit makes the cereal taste good. 加了水果使穀類食品變得可口。

2. 【數】加法[U]

do addition and subtraction 做加減法

3. 增加的人(或物); (房屋的)增建部分[U][(+to)]

The baby is a new addition to our family. 這個嬰兒是我們家新增的人丁。

視頻: 第一口語網 加法（2） Addition