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Use a formula to find a value

Grade 6 math · 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.

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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