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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 576 · 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. 1.85 − 65 =
  2. 2.A cricket match starts at 5:35 and the first innings ends at 8:45. How many minutes did the innings last?
  3. 3.20 + 22 =
  4. 4.27² =
  5. 5.85 − 22 =
  6. 6.You buy a box of crayons for ₹353 and pay with a ₹500 note. How much change do you get, in rupees?
  7. 7.82 × 8 =
  8. 8.4 + ? = 10
  9. 9.25 + 19 =
  10. 10.Double 72 =
  11. 11.A train leaves at 7:10 and reaches the next city at 9:35. How many minutes is the journey?
  12. 12.Double 38 =
  13. 13.68 × 4 =
  14. 14.20 − 9 =
  15. 15.Best estimate of 810 + 395? (a) 1400 (b) 1200 (c) 1000
  16. 16.60 + 15 =
  17. 17.19 × 8 =
  18. 18.Best estimate of 208 + 403? (a) 800 (b) 600 (c) 400
  19. 19.Best estimate of 78 × 47? (a) 4000 (b) 40000 (c) 400
  20. 20.16² =
  21. 21.44 children stand in rows of 7. How many full rows can they make?
  22. 22.9 + ? = 10
  23. 23.Double 88 =
  24. 24.78 − 43 =
  25. 25.You buy a notebook for ₹412 and pay with a ₹500 note. How much change do you get, in rupees?
  26. 26.You buy a bag of mangoes for ₹83 and pay with a ₹100 note. How much change do you get, in rupees?
  27. 27.1001 − 998 =
  28. 28.420 ÷ 5 =
  29. 29.57 + 56 =
  30. 30.A cricket match starts at 3:20 and the first innings ends at 4:10. How many minutes did the innings last?
  31. 31.You buy a pencil box for ₹54 and pay with a ₹100 note. How much change do you get, in rupees?
  32. 32.78 − 33 =
  33. 33.1006 − 979 =
  34. 34.83 − 68 =
  35. 35.28 × 4 =
  36. 36.A film starts at 1:00 and ends at 1:40. How many minutes long is the film?
  37. 37.10% of ₹220 =
  38. 38.288 ÷ 8 =
  39. 39.7 + ? = 10
  40. 40.You buy a box of crayons for ₹43 and a pen for ₹17. You pay with a ₹100 note. How much change do you get, in rupees?

Answer key

  1. 20
  2. 190
  3. 42
  4. 729
  5. 63
  6. 147
  7. 656
  8. 6
  9. 44
  10. 144
  11. 145
  12. 76
  13. 272
  14. 11
  15. 1200
  16. 75
  17. 152
  18. 600
  19. 4000
  20. 256
  21. 6
  22. 1
  23. 176
  24. 35
  25. 88
  26. 17
  27. 3
  28. 84
  29. 113
  30. 50
  31. 46
  32. 45
  33. 27
  34. 15
  35. 112
  36. 40
  37. 22
  38. 36
  39. 3
  40. 40

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