数学式与数学用语的英文读法大全.pdf

数学式和数学用语的英文读法大全 一、Number 数字 6 10 ： one million 9 10 ： one billion (or one thousand million) 1012： one trillion (or one million million) 1015： one quadrillion(or one thousand million million) 1018： one quintillion (or one million million million) 123,456,789： one hundred and twenty three million, four hundred and fifty-six thousand, seven hundred and eighty-nine 12,345,678,900,000：twelve trillion, three hundred and forty five billion, six hundred and seventy-eight million, nine hundred thousand 18： minus eighteen 二、Fractions 分数 通常将分子读为基数，将分母读为序数。 1/2： a (or one) half 1/3： a (or one) third 1/4： a quarter or one fourth 1/5： a (or one) fifth 2/3 ： two thirds, two over three, or two by three 9/10 ： nine tenths, nine over ten, or nine by ten 53/4： five and three quarters 15/64： fifteen over (or by) sixty-four 15%： fifteen per cent 4‰ ： four per mill (or mil) 三、Decimals 小数 0.4 ： zero (or naught) point four 1 .01： point (or decimal) naught (or oh) one 12.34： twelve point three four 567.809：five hundred and sixty-seven point eight naught (or oh) nine 30.45 ： thirty point four five, 0.3333333….. ： point three repeating (or recurring) 0.3% ： point (or decimal) three percent 四、Mathematic Forms 数学式 (4-1) Addition 加法 1+2=3： One and two are three. 2+3=5 ： Two plus three equals five. 4+0=4 ： Four and naught is equal to four. 45+70+ 152=267： 45, 70 and 152 added are (or make) 267 the sum (or total) is 267. (4-2) Subtraction 减法 9-4=5 ： Nine minus four equals (or is equal to) five. 15-7=8 ： Seven from fifteen leaves eight. 23,654-8,175=15,479： 8,175 (take or subtracted) from 23,654 leaves 15,479. The difference (or The remainder) is 15,479. (4-3) Multiplication 乘法 1×0=0： One multiplied by naug