加減乘除表示法

　　句型［甲數(shù)+plus/ and/ added to+乙數(shù)+is/are/ will be/ equals/is equal to/ makes/gets+和數(shù)］

　　1.    How much is (或makes) two plus four?   How many are two and four?

　　What are two and four?  回答：The total (sum) is six.

　　2.    Two plus four equals six.  Two and four is (are) six.  Two plus four is equal to six.

　　Two added to four equals six.  Two and four makes (make) six.  Tow plus four will be six.

　　If we add two to four, we get six.

　　句型［甲數(shù)+minus/ less added to+乙數(shù)+is/ equals (或is equal to)+差數(shù)］

　　［乙數(shù)+taken/ subtracted+from+甲數(shù)+leaves+差數(shù)］

　　1.    How much is eight minus (less) three?  What is three from eight? 回答：The difference is five.

　　2.    Eight minus (less) three equals five.  Eight minus three is (are/ is equal to) five.

　　Three taken from eight leaves five.  Three (subtracted) from eight and the remainder is five. (five remains).  Subtract three from eight and the remainder will be five.

　　句型［甲數(shù)+multiplied by+乙數(shù)+is/ equals (或is equal to) 等+積數(shù)］

　　［Multiply+甲數(shù)+ by+乙數(shù)+is/ equals (或is equal to) 等+積數(shù)］

　　［once, twice, three times…+乙數(shù)+is/ equals (或is equal to) 等+積數(shù)］

　　1.    How many are three multiplied by four?  What is three multiplied by four?

　　How much gives three times four?  What is three times four？ 回答：The result is twelve.

　　2.    Three multiplied by four equals twelve.  Multiply three by four gives twelve.

　　Multiply three by four, we get twelve.  Three times four is twelve

　　[注] 1x1=1  Once one is one.  2x1=2 (Twice one is two.)

　　(a+b) (a-b)=a2-b2  A plus b multiplied by a minus b is equal to a squared minus b squared.

　　150x 2/5=60  One hundred and fifty multiplied by two fifths equals sixty.

　　One hundred and fifty times two fifths are sixty.

　　句型［甲數(shù)+divided by+乙數(shù)+gives 等+商數(shù)］/［Divide+甲數(shù)+ by+乙數(shù)+gives等+商數(shù)］

　　［乙數(shù)+into+甲數(shù)+goes+商數(shù)］

　　1.    8÷2=?  How many is eight divided by two?  How many times does two go into eight?

　　回答：The quotient is four (times).

　　2.    8÷2=4  Eight divided by two makes four.  Divide eight by two equals four.

　　Divide two into eight and you get four.  Two into eight goes four times.

　　[注1] 9÷2=4余1  Two into nine goes four times, and 1 remainder.  Nine divided by two gives four, and 1 remainder.

　　9÷2=4 又1/2 Divide nine by two and you get four and a half.  Divide two into nine and you get four and a half.

　　[注2] 加減乘除綜合式 (3+8-2) ÷3x5=15  Three plus eight minus two, all divided by three multiplied by five equal fifteen.
 

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