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．
二加三等于五
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．
十减去六等于四
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．
三乘以四等于十二
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．
十六除以四等于四.