1、加 用plus，and或add表示; 等于 用is，make，equal等词表示。

2、 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 makes five. Two added to three equals five. If we add two to/and three, we get five.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. 三乘以四等于十二除 用pide的过去分词形式表示 16÷4=? How much is sixteen pided by four? 16÷4=4 Sixteen pided by four is four. Sixteen pided by four equals/gives/makes four. 十六除以四等于四。

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