英語--數字篇II

三、Mathematic forms 數學式
(1)加法
1 + 2 =3 One and two are three.
2 + 3 =5 Two plus three equals five.
4 + 0 =4 Four and nought is equal to four.

(2)減法
9 - 4=5 Nine minus four equals five.
15 - 7=8 Seven from fifteen leaves eight.

(3)乘法
1 × 0 =0 One multiplied by nought equals nought.
1 × 1 =1 Once one is one.
2 × 1 =2 Twice one is two.
3 × 5 =15 Three times five is fifteen.

(4)除法
9 3 =3 Nine divided by three makes three.
20 5 =4 Five into twenty goes four times

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