1 + 2 = 3 (1 plus 2 = 3 or 1 and 2 is 3)
3 − 1 = 2 (3 minus 1 = 2 or 3 take away 1 is 2 or 1 from 3 = 2)
2 × 3 = 6 (2 multiplied by 3 = 6 or 2 times 3 = 6 or two threes are six)
6 ÷ 2 = 3 (6 divided by 2 = 3 or 2 into 6 is 3)
2 + 2 = 4 (2 + 2 equal(s) 4 or 2 + 2 make(s) 4)
x ≠ 2 (x is not equal to 2 or x does not equal 2)
x ≈ 2 (x is approximately equal to 2)
x > 2 (x is greater than 2)
x ≥ 2 (x is greater than or equal to 2)
x < 2 (x is less than 2)
x ≤ 2 (x is less than or equal to 2)
2 (2 bình phương) = 4 (2 squared is 4)
√ (căn bậc 2) √4 = 2 {the (square) root of 4 is 2}
2 mũ 3 = 8 (2 cubed is 8)
3√ (căn bậc 3): 3√8 = 2 (the cube root of 8 is 2)
2 mũ 4 = 16 (2 to the power of 4 is 16)
± 4 (plus or minus 4)
¼ (a quarter or one quarter)
½ (a half or one half)
¾ (three quarters)
5 ¾ (five and three quarters)
0.1 {nought point one (UK), zero point one (US)}
3.15 (three point one five)
25% (25 per cent)
90° (90 degrees)