一。加减乘除英语表示法。
5+6=11 Five plus (and)six is(are, is equal to, makes, make) eleven
13-6=7 Thirteen minus six is seven . 或者 Six from thirteen leaves seven
5×3=15 Five times three is fifteen 或者 Five times three fifteen
18÷6=3 Eighteen divided by six is three.
33÷4=8余1 Thirty-three divided by four is eight and one over. 或者Four into thirty-three is eight and one in the remainder.
二。小数点表达法。
7.5 seven point five
0.1 zero point one 或者 nought point one
0.235 nought piont two three five
13.50 one three piont five zero
三。分数表达法。
用英语表达分数时,分子用基数词,分母用序数词,当分子大于1时,分母要用复数形式
三分之一 one (a) third
三分之二 two thirds
二又五分之三 two and three fifths (整数和分数间用and 连接)
另外,二分之一 可以用 one half ,
四分之一可以用 one (a)quarter表达
四。数学中“比”的英语表达法。
1:3 the ratio of one to three
15:3 =5 the ratio of fifteen to three is (equals)five
五。大于或小于< 英语表达法。
5+67 Five plus six is greater than seven
17<9+10 Seventeen is less than nine plus ten
六。英语“折”的表达法。
八五折 (便宜百分十五 ) fifteen per cent discount
七折 (便宜百分三十) thirty per cent discount
九折 (便宜百分之十)ten per cent discount
七。温度英语表达法。
21℃ twenty-one degrees centigrade
-10℃ ten degrees below zero
80℉ eighty degrees Fahrenheit
八。次方的表达法。
㎡ m square
m3 m cube