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5.2 Algebra
| Term | Definition |
|---|---|
| Expression | A group of terms separated by a " +" or " |
| Variable or pronumeral. | A letter used to represent a number we don't know. E.g. a, c. |
| Term | Can be a single number, a number and a variable or variables multiplied together. |
| E.g. a, 4e, | 6, d², are terms. |
| Constant | A number on its own. E.g. 5a + 3b |
| Coefficient | The number in front of a variable. E.g. coefficient of 4e is 4. |
| Equation | A mathematical sentence that contains an equals sign. E.g. 5b × 4 = 12 |
| Name the variables in this expression 4a + 3c | a and c |
| List the terms in the expression r + 4s | r and 4s |
| List the terms in the expression 7w - 2x + 9 | The terms are 7w, -2x and 9 |
| The coefficient of 3b | 3 |
| The constant in the expression 8h + f -5 | -5 |
| The expressions in this equation 14e * 2 = 3f + 10 | 14e * 2 and 3f + 10 |
| x +6 an expression or equation? | expression |
| Is 8q + 4 = 2n | equation |
| 2ab = | 2 x a x b |
| de = | d x e |
| b x b = | b² |
| 5( r + s) = | 5 x (r + s) |
| Multiplication words | Times, product of. |
| Addition words | Sum, add, increase by, deposit, plus. |
| Subtraction words | Minus, subtract, less than, decrease by, withdraw, take away, difference between. |
| Division words | Share, divide, quotient. |
| Sum of g and 20 | g + 20 |
| Product of 16 and r | 16 x r = 16r |
| Take away 25 from the sum of c and a. | c + a |
| Quotient of t and 3 | t ÷ 3 = t/3 |
Created by:
leoniewanchap
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