加减乘除算式

　　6+5=11 Six plus five is eleven 或 Six and five is eleven.

　　11-6=5 Eleven minus six is five. 或 Six from eleven is five.

　　4×5=20 Four multiplied by five is twenty.或 Four times five is twenty.

　　20÷4=5 Twenty divided by four is five. 或 Four into twenty goes five.

　　15:5=3 The ratio of fifteen to five is three.

　　32 Three squared is nine.

　　23 Two cubed is eight.

　　24 The fourth power of two is sixteen.

　　X^(1/2)=Y The square root of X is Y.

　　X^(1/3)=Y The cubic root of X is Y.

　　a > b a is more than b.

　　a < b a is less than b.

　　a ≈ b a approximately equals to b.

　　a ≠ b a is not equal to b.