加减乘除表示法
1. “加”用plus，and或add表示;“等于”用is，make，equal等词表示。
2+3=? 可表示为： How much is two plus three?
2+3=5 Two plus three is five.
Two and three is equal to five.
Two and three make five.
Two added to three equals five.
If we add two to/and three, we get five.
2. “减”用 minus或 take from表示
10-6=? How much is ten minus six?
10-6=4 Ten minus six is four.
Take six from ten and the remainder is four.
Six (taken) from ten is four.
3. “乘”用time(动词)或multiply表示
3X4=? How much is three times four?
3X4=12 Three times four is/are twelve.
Multiply three by four，we get twelve.
Three multiplied by four makes twelve.
4. “除”用divide的过去分词形式表示
16÷4=? How much is sixteen divided by four?
16÷4=4 Sixteen divided by four is four.
Sixteen divided by four equals/gives/makes four.
