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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 856 · 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. 1.28 + ? = 100
  2. 2.You buy a kite for ₹24 and a pen for ₹29. You pay with a ₹100 note. How much change do you get, in rupees?
  3. 3.28 × 8 =
  4. 4.29 + 2 =
  5. 5.Best estimate of 56 × 64? (a) 36000 (b) 360 (c) 3600
  6. 6.86 × 5 =
  7. 7.37 × 4 =
  8. 8.17 children stand in rows of 3. How many full rows can they make?
  9. 9.You buy a storybook for ₹397 and pay with a ₹500 note. How much change do you get, in rupees?
  10. 10.5% of ₹90 =
  11. 11.503 − 484 =
  12. 12.Half of 32 =
  13. 13.76 × 9 =
  14. 14.10 + 9 =
  15. 15.76 + ? = 100
  16. 16.77 + 29 =
  17. 17.40 × 4 =
  18. 18.88 − 19 =
  19. 19.14² =
  20. 20.106 − 75 =
  21. 21.74 + 9 =
  22. 22.24 + 76 =
  23. 23.12 × 9 =
  24. 24.64 + 77 =
  25. 25.35 + 6 =
  26. 26.29 + 5 =
  27. 27.89 − 13 =
  28. 28.Best estimate of 844 + 262? (a) 1300 (b) 900 (c) 1100
  29. 29.26 + 7 =
  30. 30.18² =
  31. 31.66 + 7 =
  32. 32.What is the remainder when 57 is divided by 7?
  33. 33.160 ÷ 4 =
  34. 34.45 + 8 =
  35. 35.507 − 476 =
  36. 36.5% of ₹470 =
  37. 37.12 × 4 =
  38. 38.5% of ₹290 =
  39. 39.32 + 29 =
  40. 40.176 ÷ 8 =

Answer key

  1. 72
  2. 47
  3. 224
  4. 31
  5. 3600
  6. 430
  7. 148
  8. 5
  9. 103
  10. 4.5
  11. 19
  12. 16
  13. 684
  14. 19
  15. 24
  16. 106
  17. 160
  18. 69
  19. 196
  20. 31
  21. 83
  22. 100
  23. 108
  24. 141
  25. 41
  26. 34
  27. 76
  28. 1100
  29. 33
  30. 324
  31. 73
  32. 1
  33. 40
  34. 53
  35. 31
  36. 23.5
  37. 48
  38. 14.5
  39. 61
  40. 22

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