 ここでは計算式などの読み方を覚えてしまいましょう。

1 + 2 = 3
One plus two equals three. / One plus two is three. / One plus two makes three.

10 – 6 = 4
Ten minus six equals four.

5 × 10 = 50
Five times ten is fifty. / Five multiplied by ten is fifty.

56 ÷ 8 = 7
Fifty-six divided by eight is seven.

1/5 (5分の1)
one fifth.

2/5 (5分の2)
two fifths.

2 3/7 (2と7分の3)
two and three sevenths.

1/4
one fourth / a quarter / one quarter

3/4
three fourths / three quarters

23 / 57
twenty-three over fifty-seven

y/x
y over x

x2
x squared

x3
x cubed / third to the power of x / x to the third power

x4
fourth to the power of x / x to the fourth power

x-5
negative fifth to the power of x / x to the negative fifth

y = x
y equals x / y is equal to x

y = f(x)
y equals of x

x < y
x is less than y

x ≦ y
x is less than or equal to y

x > y
x is greater than y

x ≧ y
x is greater than or equal to y

x ≠ y
x is not equal to y

√x
square root of x

∛x
third root of x

|a| (絶対値)
absolute value of a

y = (x + b)
y is equal to parentheses x plus b close parentheses

xi
x sub i

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 addition 足し算 subtraction 引き算 multiplication 掛け算 division 割り算 ＋ plus － minus × times / multiplied by ÷ divided by even numbers 偶数 odd numbers 奇数 numerical formula / numerical formula expression 数式 number 数 mathematics / math 数学、算数 arithmetic 算術 calculation 計算