加减乘除的英文怎么说？
Addition 加法
1+2=3： One and two are three.
2+3=5：Two plus three equals five.
4+1=5： Four and one is equal to four.
45+70+152=267：45, 70 and 152 added are (or make) 267
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.
Multiplication 乘法
1×2=2：One multiplied by two equals two.
3×5=15：Three times five is fifteen.
6×0=0：Multiply six by zero, and the result is zero.
Division 除法
9÷3=3： Nine divided by three makes (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 quotient is 198, and 13 remainder.
分数、小数、次方、根号的英文怎么说？
Fractions 分数
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
5 3/4：five and three quarters
15/64：fifteen over/by sixty-four
15%：fifteen per cent
Decimals 小数
0.4：zero point four
.01：point o one
567.809：five hundred and sixty-seven point eight o nine
30.45：thirty point four five
0.3333333…..：point three repeating／recurring
0.3%：point three percent
Power and Root 幂次方 和 根号
bn 当中， b 被称为底数 base，n 被称为指数 power／exponent
bn：the nth power of b ／ b to the nth (power)
1×107：one times the seventh power of ten.
2 的平方：two square／two squared
3 的立方：three cube／three cubed
4 的 4 次方：four to the fourth power
5 的 -1 次方：five to the minus one power
