数学符号英文读法【转载】 来源： 金晟业的日志 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 fouth 1/5 = a (or one) fifth 2/3 = two thirds 9/10 = nine tenths 53/4 = five and three quarters 15/64= fifteen over (or by) sixty-four 15% = fifteen per cent 4‰ = four per mill Decimals 小数 0.4 = zero (or nought) point four .01 = point (or decimal) nought one 12.34 = twelve point three four 567.809 = five hundred and sixty-seven point eight nought nine 30.45 = thirty point four five, five recurring 0.3% = decimal three percent Mathematic Forms 数学式 (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 nought is equal to four. 45+70+152=267 45,70 and 152 added are (or make) 267 the sum (or total) is 267. (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. Nine from five won`t go. Multiplication 乘法 1×0=0 One multiplied by nought equals nought. 1×1=1 Once one is one. 2×1=2 Twice one is two. 3×5=15 Three times five is fifteen 6×0=0 Multiply six by nothing, and the result is nothing. Division 除法 9÷3=3 Nine divided by three maks (or is equal to) three. 20÷5=4 Five into twenty goes four times. 4567÷23=198 余13 23 into 4567 goes 198 times, and 13 remainder. The quctient is 198, and 13 remainder. Tim e 时间 (1)Hours 钟点 2h.5'8" = two hours five minutes eight seconds 2 小时5 分8 秒 6.18 = six eighteen 6 时18 分 8.30 a.m.= eight thirty a.m.['ei 'em] 上午8 时30 分 the 6.05 p.m.train = the...
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