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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 282 · 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. 1.153 ÷ 9 =
  2. 2.A film starts at 5:10 and ends at 6:05. How many minutes long is the film?
  3. 3.Double 34 =
  4. 4.27 + 26 =
  5. 5.558 ÷ 9 =
  6. 6.A film starts at 6:05 and ends at 8:30. How many minutes long is the film?
  7. 7.What is the remainder when 101 is divided by 7?
  8. 8.26 + 25 =
  9. 9.Half of 68 =
  10. 10.You buy a water bottle for ₹33 and a pen for ₹26. You pay with a ₹100 note. How much change do you get, in rupees?
  11. 11.What is the remainder when 21 is divided by 4?
  12. 12.16 + 5 =
  13. 13.Best estimate of 380 + 438? (a) 800 (b) 1000 (c) 600
  14. 14.321 − 282 =
  15. 15.You buy a water bottle for ₹23 and pay with a ₹100 note. How much change do you get, in rupees?
  16. 16.25% of ₹900 =
  17. 17.72 + ? = 100
  18. 18.24² =
  19. 19.Best estimate of 96 × 97? (a) 100000 (b) 1000 (c) 10000
  20. 20.25² =
  21. 21.125 − 94 =
  22. 22.77 + 7 =
  23. 23.19 + 20 =
  24. 24.25 × 4 =
  25. 25.27 × 8 =
  26. 26.16² =
  27. 27.9 + ? = 10
  28. 28.69 − 37 =
  29. 29.50% of ₹730 =
  30. 30.9 + 9 =
  31. 31.You buy a box of crayons for ₹22 and pay with a ₹100 note. How much change do you get, in rupees?
  32. 32.94 × 4 =
  33. 33.25% of ₹40 =
  34. 34.18 + 9 =
  35. 35.13² =
  36. 36.56 × 6 =
  37. 37.Best estimate of 202 + 624? (a) 800 (b) 1000 (c) 600
  38. 38.216 ÷ 8 =
  39. 39.46 + 21 =
  40. 40.205 ÷ 5 =

Answer key

  1. 17
  2. 55
  3. 68
  4. 53
  5. 62
  6. 145
  7. 3
  8. 51
  9. 34
  10. 41
  11. 1
  12. 21
  13. 800
  14. 39
  15. 77
  16. 225
  17. 28
  18. 576
  19. 10000
  20. 625
  21. 31
  22. 84
  23. 39
  24. 100
  25. 216
  26. 256
  27. 1
  28. 32
  29. 365
  30. 18
  31. 78
  32. 376
  33. 10
  34. 27
  35. 169
  36. 336
  37. 800
  38. 27
  39. 67
  40. 41

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