五百米深蓝
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=5Two 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=4Ten 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=12Three 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divide的过去分词形式表示16÷4=? How much is sixteen divided by four?16÷4＝4Sixteen divided by four is four．Sixteen divided by four equals/gives/makes four．十六除以四等于四。
