| Math Symbols | Meaningful Mathematics Statement |
| ≡ | Identically equal |
| ≅ | Congruent with |
| ∼ | Approximately |
| ≠ | Not equal to |
| ≤ | Less than or equal to |
| ≥ | Greater than or equal to |
| ∧ | Logical and |
| ∨ | Logical and |
| ∀ | For all |
| ∃ | There exists |
| ∑ | N-ary summation |
| ∠ | Angle |
| N | The set of natural numbers |
| Z | The set of whole numbers (integers) |
| R | The set of real numbers |
| ∅ | An empty set |
| ∞ | An infinity sign |
| x ∈ X | An element x belongs to a set X |
| x ∉ X | An element x doesn’t belong to a set X |
| X ⊂ Y | A set X is a subset of a set Y |
| X ∪ Y | A union of sets X and Y |
| X ∩ Y | An intersection of sets X and Y |
| + | Plus sign/added by |
| − | Minus sign/subtracted by |
| × | Multiplication/multiplied by |
| ÷ | Division/divided by |
| √ | Square root/radical sign |
| ⊥ | Orthogonal to/perpendicular |
| π | Pi = 3,14159… |
| ! | Factorial |
| ∫ | Integral |
| [a, b] | A numerical sign |
2. How To Say Number And Symbol
a. How to say numbers and ordinal numbers
| Number forms | Number forms in English | |
| 1 digit numbers | 0, 1, 2, 3, 4, 5,... | zero, one, two, three, four, five,... |
| 2 digit numbers | 10, 11, 12, 13, 14, 15, 16 | ten, eleven, twelve, thirteen, fourteen, fifteen, sixteen |
| 3 digit numbers | 100, 300, 500, ... | one hundred, three hundred, five hundred... |
| 4 digit numbers | 2000, 4000, … | two thousand, four thousand,... |
| 5 digit numbers | 10 000, 30 000, ... | ten thousand, thirty thousand,... |
| 6 digit numbers | 300 000 | three hundred thousand |
| 7 digit numbers | 5 000 000 | five million |
| 8 digit numbers | 30 000 000 | thirty million |
| 9 digit numbers | 500 000 000 | five hundred million |
| 10 digit numbers | 2 000 000 000 | two billion |
| Ordinal Number | Word | Abbreviation |
| 1 | First | |
| 2 | Second | |
| 3 | Third | |
| 4 | Fourth | |
| 5 | Fifth | |
| 6 | sixth | |
| 7 | Seventh | |
| 8 | Eight | |
| 9 | Ninth | |
| 10 | Tenth |
b. How To Say Combination
| Numbers | Break down | Explanation |
| 47 | equals(=) 40 + 7 | This number has two digits. The highest is forty, the next value is seven. Therefore it should be‘forty seven’ |
| 683 | equals (=) 600 + 80 + 3 | This number has three digits. The highest value is six hundred followed by eighty followed by three. Therefore it should be ‘six hundred and eighty three’ |
| 3562 | equals (=) 3000 + 500 +60 + 2 | This number has four digits. The highest value is three thousand followed by five hundred followed by sixty followed by two. Therefore it should be ‘threethousand five hundred and sixty two |
c. How To Say numbers with decimal point
| Numbers | Break down | Explanation |
| 3.7 | equal (=) 3 + 0.7 | This number has one digit. The highest value is three followed by zero point seven. Therefore it should be ‘three point seven’ |
| 58.4 | equal (=) 50 + 8 + 0.4 | This number has two digits. The highest value is fifty followed by eight followed by zero point four. Therefore it should be ‘ fifty eight point four |
| 5.84 | equal (=) 5 + 0.84 | This number has one digit. The highest value is five followed by zero point eight four. Therefore it should be ‘five point eight four’ |
d. How To Say Fraction
Generally, we can say a fraction sign (ex:
37/5, it should be said as ‘thirty seven over five’.
3/7, it should be said as ‘three over seven’
Note: The upper part of fraction called a numerator, the lower part of a fraction called a denominator
Some fractions already have a designated name, but the value of the numerator should not more than the value of the denominator.
Example:
1/2 is half
x/3 is x-third; one-third, two-thirds, not five-thirds
x/4 is x-quarter; one-quarters, three-quarters, not seven-quarters
x/4 is x-fifth; one-fifth, two-fifths, three-fifths, not nine-fifths
3. How to say mathematical expression
| Math expression | English expression |
| 25 + 352 = 377 | Twenty five plus three hundred and fifty two is threehundred and seventy seven |
| 45 – 56 = -11 | Forty five minus fifty six is negative eleven |
| 3 × 7 = 21 | Three multiplied by seven is twenty one |
| 24 : 6 = 4 | Twenty four divided by six is four |
| Four raised to the power of three is sixty four orfour cubed is sixty four. | |
| The square root of six hundred and twenty five is twenty five | |
| The cube root of sixty four is four or the third root of sixty four is four | |
| The fifth root of thirty two is two | |
| x + y = 12 | x plus y is twelve |
| x = y – 10 | The value of x is equal to the value of y minus ten |
| x < y + 3 | The value of x is less than the value of y plus three |
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