We do not collect any personal data from our quizzes, except in the 'First Name' and 'Group/Class' fields which are both optional and only used for teachers to identify students within their educational setting. You can print a copy of your results from this page, either as a pdf or as a paper copy.įor incorrect responses, we have added some helpful learning points to explain which answer was correct and why. This will take you to a new webpage where your results will be shown. Our quizzes have been created using Google Forms.Īt the end of the quiz, you will get the chance to see your results by clicking 'See Score'. If p + 5 = 9 then p = 4 because 4 + 5 = 9.When we are solving an equation, we are finding out the value(s) of the variable in the equation. p + 5 has a value of 11 when p = 6 because 6 + 5 = 11.When we are calculating the value of an expression, we work out the value of the expression when we give a value to the variable. Add 5 to p and then double the result is written as (p + 5) x 2 or 2(p + 5).Multiply d by 4 could be written as d x 4 or 4d.Subtract 6 from n could be written as n - 6.When we are generating an expression, we are taking a rule and turning it into algebra. 5(y 2 - 6) = 3y + 8 is another equation.2a + 5 is an expression involving the variable aĪn equation is where an algebraic expression is equal to something, which might be a number, or another algebraic expression.Remember to follow the order of the operations: parentheses, exponents, multiplication/division, addition/subtraction.An expression is a mathematical statement where variables and operations are combined. To evaluate an expression, just replace the variables with grouping symbols, insert the values given for the variables, and do the arithmetic. three more than the product of 2 and x: 2 x + 3 the sum of a number and 5: x + 5 or 5 + xĥ. Give the algebraic expression for each of the following.ĥ. For division: halve, divided by, ratio.For multiplication: times, product, multiplied by, of.For subtraction: minus, less than, smaller than, decrease.For addition: sum, more than, greater than, increase.Key words that can help you translate words into letters and numbers include: Variables are used to change verbal expressions into algebraic expressions, that is, expressions that are composed of letters that stand for numbers. The letter o is usually not used because it can be mistaken for 0 (zero). The letters e and i have special values in algebra and are usually not used as variables. The letters x, y, z, a, b, c, m, and n are probably the most commonly used variables.
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