Grade DE Expressions Use the correct algebraic notation

Grade D/E Expressions Use the correct algebraic notation in expressions and equations, including using brackets If you have any questions regarding these resources or come across any errors, please contact helpful-report@pixl. org. uk

Key Vocabulary Bracket Single term Algebraic expression Algebraic notation Equation

How to use correct algebraic notation A meal for x people costs £ 120. They split the bill equally. How much should each person pay?

How to use correct algebraic notation A meal for x people costs £ 120. They split the bill equally. How much should each person pay? 120 ÷ x = x

How to use correct algebraic notation Andy buys n blue pens and Beth buys m red pens. Write an expression for the number of pens they buy altogether. Andy loses 2 blue pens. Write an expression for the number of pens they now have.

How to use correct algebraic notation Andy buys n blue pens and Beth buys m red pens. Write an expression for the number of pens they buy altogether. n+m Andy loses 2 blue pens. Write an expression for the number of pens they now have. (n-2) + m = n + m - 2

Write expressions: Annie buys 5 train tickets. Each ticket costs £t. There is a discount of £ 1 off each ticket. A standard bus has x seats downstairs and 2 y seats upstairs. A large bus has 3 x seats downstairs and 3 y seats upstairs. One Monday 4 standard buses and 3 large buses travel from Enfield to Edmonton.

Write expressions: Annie buys 5 train tickets. Each ticket costs £t. There is a discount of £ 1 off each ticket. 5(t-1) A standard bus has x seats downstairs and 2 y seats upstairs. A large bus has 3 x seats downstairs and 3 y seats upstairs. One Monday 4 standard buses and 3 large buses travel from Enfield to Edmonton. 4 x + 4(2 y) + 3(3 x) + 3(3 y) = 4 x + 8 y + 9 x + 9 y = 13 x + 17 y

Problem Solving and Reasoning a, b and c are odd numbers Write an expression using a, b and c so that the value of the expression is always even.

Problem Solving and Reasoning a, b and c are odd numbers Write an expression using a, b and c so that the value of the expression is always even. For example ab +c

Problem Solving and Reasoning x+ 7 z 3 y Perimeter = 34 cm Form an equation using the information on the diagram.

Problem Solving and Reasoning x+ 7 z 3 y 6 y +2 x + 14 z = 34 Perimeter = 34 cm Form an equation using the information on the diagram.

Problem Solving and Reasoning x+ 7 z 3 y Area = 34 cm 2 Form an equation using the information on the diagram.

Problem Solving and Reasoning x+ 7 z 3 y 3 y(x + 7 z) = 34 Area = 34 cm 2 Form an equation using the information on the diagram.

Problem Solving and Reasoning Explain what an expression is. Can you give an example of an expression? Explain what an equation is. Can you give an example of an equation?