Create a free account now and get 3 full lessons, completely free. Get my 3 free lessons

Practise online insteadThe answer key prints on page 2.

Use a formula to find a value

Year 7 maths · Fieldbook Learning

Name ______________________ Date __________

Replace each letter in the formula with its value, then calculate.

Use the formula A = l × w to find A when l = 11 and w = 12.
Use the formula A = l × w to find A when l = 5 and w = 7.
Use the formula A = l × w to find A when l = 12 and w = 8.
Use the formula A = l × w to find A when l = 4 and w = 3.
Use the formula P = 2 × l + 2 × w to find P when l = 9 and w = 3.
Use the formula A = l × w to find A when l = 6 and w = 9.
Use the formula A = l × w to find A when l = 5 and w = 9.
Use the formula P = 2 × l + 2 × w to find P when l = 3 and w = 12.
Use the formula P = 2 × l + 2 × w to find P when l = 8 and w = 13.
Use the formula A = s² to find A when s = 16.
Use the formula A = s² to find A when s = 9.
Use the formula d = r × t to find d when r = 7 and t = 5.
Use the formula A = l × w to find A when l = 4 and w = 14.
Use the formula A = b × h ÷ 2 to find A when b = 26 and h = 14.
Use the formula A = s² to find A when s = 4.
Use the formula A = l × w to find A when l = 13 and w = 10.
Use the formula V = l × w × h to find V when l = 2, w = 4 and h = 5.
Use the formula A = b × h ÷ 2 to find A when b = 22 and h = 3.
Use the formula P = 2 × l + 2 × w to find P when l = 13 and w = 2.
Use the formula V = s³ to find V when s = 9.

Play it as a quiz game

20 of these questions as multiple choice, with near-miss wrong answers, ready for Kahoot or Blooket.

Download the game's own question template: in Kahoot, Add question → Import spreadsheet; in Blooket, Create a set → Spreadsheet import.
Click the matching button below, then click the first empty question row of the template and paste.
Save the template (Kahoot needs .xlsx, Blooket .csv) and upload it.

Answer key: Use a formula to find a value

132
35
96
12
24
54
45
30
42
256
81
35
56
182
16
130
40
33
30
729