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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 989 · 40 questions
TalentJR

How to do it in your head (Look first): A 9, 19 or 99 → round and adjust. Two close numbers → count up (or near doubles when adding). × or ÷ by 4 or 8 → double or halve; other sums → split into tens and ones.

NameDateTime takenScore ___ / 40
  1. 1.You buy a pencil box for ₹11 and a pen for ₹25. You pay with a ₹100 note. How much change do you get, in rupees?
  2. 2.13² =
  3. 3.What is the remainder when 41 is divided by 5?
  4. 4.Best estimate of 23 × 97? (a) 20000 (b) 200 (c) 2000
  5. 5.36 + 9 =
  6. 6.11 + 10 =
  7. 7.126 − 95 =
  8. 8.192 ÷ 3 =
  9. 9.108 children stand in rows of 7. How many full rows can they make?
  10. 10.87 + 4 =
  11. 11.27 + 87 =
  12. 12.4 + ? = 10
  13. 13.92 − 58 =
  14. 14.72 + ? = 100
  15. 15.What is the remainder when 40 is divided by 3?
  16. 16.15² =
  17. 17.56 ÷ 4 =
  18. 18.80 + 51 =
  19. 19.25 × 9 =
  20. 20.Double 66 =
  21. 21.You buy a box of crayons for ₹23 and a pen for ₹22. You pay with a ₹100 note. How much change do you get, in rupees?
  22. 22.Best estimate of 681 + 783? (a) 1500 (b) 1700 (c) 1300
  23. 23.462 ÷ 6 =
  24. 24.318 − 281 =
  25. 25.47 children stand in rows of 5. How many full rows can they make?
  26. 26.You buy a box of crayons for ₹19 and a pen for ₹27. You pay with a ₹100 note. How much change do you get, in rupees?
  27. 27.5% of ₹190 =
  28. 28.Best estimate of 38 × 28? (a) 120 (b) 12000 (c) 1200
  29. 29.35 children stand in rows of 3. How many full rows can they make?
  30. 30.A film starts at 6:50 and ends at 8:45. How many minutes long is the film?
  31. 31.33 children stand in rows of 4. How many full rows can they make?
  32. 32.8 + 6 =
  33. 33.110 − 62 =
  34. 34.You buy a box of crayons for ₹40 and a pen for ₹32. You pay with a ₹100 note. How much change do you get, in rupees?
  35. 35.28 + ? = 100
  36. 36.8 + 10 =
  37. 37.Best estimate of 77 × 76? (a) 640 (b) 6400 (c) 64000
  38. 38.6 + 7 =
  39. 39.121 − 96 =
  40. 40.A train leaves at 1:05 and reaches the next city at 1:35. How many minutes is the journey?

Answer key

  1. 64
  2. 169
  3. 1
  4. 2000
  5. 45
  6. 21
  7. 31
  8. 64
  9. 15
  10. 91
  11. 114
  12. 6
  13. 34
  14. 28
  15. 1
  16. 225
  17. 14
  18. 131
  19. 225
  20. 132
  21. 55
  22. 1500
  23. 77
  24. 37
  25. 9
  26. 54
  27. 9.5
  28. 1200
  29. 11
  30. 115
  31. 8
  32. 14
  33. 48
  34. 28
  35. 72
  36. 18
  37. 6400
  38. 13
  39. 25
  40. 30

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