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Class 6 Maths Worksheet: Algebra

Maths worksheets lesson 44: Algebra: expressions and simple equations · Set 492 · 40 sums
TalentJR

The method (Keep the balance): 3x means 3 × x. "5 more" → + 5, "5 fewer" → − 5, "5 times" → 5n, "shared among 5" → n ÷ 5. Value of an expression: put the number in place of the letter, then work it out — 3x + 5 when x = 4 is 12 + 5 = 17. Solve x + a = b by taking a from both sides; x − a = b by adding a; ax = b by dividing by a; x ÷ a = b by multiplying by a. Check by putting your answer back into the equation.

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  1. 1.Isha has n pencils. A friend has 8 times as many. Which expression shows how many pencils the friend has? (a) n ÷ 8 (b) 8n (c) n − 8 (d) n + 8
  2. 2.Find the value of 6a + 7b when a = 6 and b = 1.
  3. 3.Solve: y + 2 = 22. What is y?
  4. 4.Find the value of 6x − 31 when x = 12.
  5. 5.Find the value of 6n + 2 when n = 2.
  6. 6.Find the value of 4a + 4b when a = 8 and b = 8.
  7. 7.Find the value of 3a + 3b when a = 9 and b = 2.
  8. 8.Solve: y − 12 = 18. What is y?
  9. 9.Each matchstick letter C needs 3 sticks, so n letters need 3n sticks. How many sticks are needed for 13 letters?
  10. 10.Solve: 6m = 60. What is m?
  11. 11.Solve: n − 4 = 11. What is n?
  12. 12.Find the value of 3n + 5 when n = 7.
  13. 13.Solve: m − 11 = 4. What is m?
  14. 14.Solve: x + 4 = 12. What is x?
  15. 15.Farhan has n balls. A friend has 4 fewer. Which expression shows how many balls the friend has? (a) n ÷ 4 (b) 4n (c) n + 4 (d) n − 4
  16. 16.Kavya has p balls. A friend has 7 times as many. Which expression shows how many balls the friend has? (a) p − 7 (b) 7p (c) p + 7 (d) p ÷ 7
  17. 17.Isha shares m bananas equally among 2 friends. Which expression shows how many bananas each friend gets? (a) m ÷ 2 (b) m + 2 (c) m − 2 (d) 2m
  18. 18.Find the value of 3a + 6b when a = 1 and b = 3.
  19. 19.Find the value of 6a + 3b when a = 9 and b = 1.
  20. 20.Solve: x − 8 = 13. What is x?
  21. 21.Saanvi has m mangoes. A friend has 3 times as many. Which expression shows how many mangoes the friend has? (a) m − 3 (b) m ÷ 3 (c) m + 3 (d) 3m
  22. 22.Find the value of 4t + 2 when t = 7.
  23. 23.Riya has n kites. A friend has 7 times as many. Which expression shows how many kites the friend has? (a) n + 7 (b) n ÷ 7 (c) n − 7 (d) 7n
  24. 24.Tara has m balls. A friend has 3 fewer. Which expression shows how many balls the friend has? (a) m + 3 (b) m ÷ 3 (c) 3m (d) m − 3
  25. 25.Find the value of 7y − 20 when y = 12.
  26. 26.Each matchstick letter H needs 3 sticks, so n letters need 3n sticks. How many sticks are needed for 11 letters?
  27. 27.Each matchstick letter E needs 4 sticks, so n letters need 4n sticks. How many sticks are needed for 16 letters?
  28. 28.Solve: m − 10 = 17. What is m?
  29. 29.Solve: t ÷ 9 = 18. What is t?
  30. 30.Find the value of 4x − 4 when x = 3.
  31. 31.Each matchstick letter U needs 3 sticks, so n letters need 3n sticks. How many sticks are needed for 5 letters?
  32. 32.Solve: t − 2 = 5. What is t?
  33. 33.Solve: t + 9 = 24. What is t?
  34. 34.Each matchstick letter F needs 3 sticks, so n letters need 3n sticks. How many sticks are needed for 17 letters?
  35. 35.Find the value of 6x − 5 when x = 3.
  36. 36.Riya has m flowers. A friend has 8 times as many. Which expression shows how many flowers the friend has? (a) 8m (b) m + 8 (c) m − 8 (d) m ÷ 8
  37. 37.Each matchstick letter L needs 2 sticks, so n letters need 2n sticks. How many sticks are needed for 6 letters?
  38. 38.Solve: m + 4 = 8. What is m?
  39. 39.Ananya has m mangoes. A friend has 3 more. Which expression shows how many mangoes the friend has? (a) 3m (b) m − 3 (c) m + 3 (d) m ÷ 3
  40. 40.Find the value of 2a + 4b when a = 7 and b = 5.

Answer key

  1. 8n
  2. 43
  3. 20
  4. 41
  5. 14
  6. 64
  7. 33
  8. 30
  9. 39
  10. 10
  11. 15
  12. 26
  13. 15
  14. 8
  15. n − 4
  16. 7p
  17. m ÷ 2
  18. 21
  19. 57
  20. 21
  21. 3m
  22. 30
  23. 7n
  24. m − 3
  25. 64
  26. 33
  27. 64
  28. 27
  29. 162
  30. 8
  31. 15
  32. 7
  33. 15
  34. 51
  35. 13
  36. 8m
  37. 12
  38. 4
  39. m + 3
  40. 34

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