← Mixed mental challenge lesson New set →

Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 773 · 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. 1.74 × 6 =
  2. 2.68 ÷ 4 =
  3. 3.144 ÷ 4 =
  4. 4.Best estimate of 243 + 634? (a) 1000 (b) 800 (c) 600
  5. 5.1 + ? = 10
  6. 6.You buy a box of crayons for ₹22 and a pen for ₹24. You pay with a ₹100 note. How much change do you get, in rupees?
  7. 7.A cricket match starts at 7:30 and the first innings ends at 8:00. How many minutes did the innings last?
  8. 8.Best estimate of 788 + 583? (a) 1400 (b) 1600 (c) 1200
  9. 9.9 + 2 =
  10. 10.Best estimate of 662 + 465? (a) 1400 (b) 1200 (c) 1000
  11. 11.51 + 19 =
  12. 12.A film starts at 3:50 and ends at 4:20. How many minutes long is the film?
  13. 13.Double 61 =
  14. 14.A film starts at 2:30 and ends at 5:50. How many minutes long is the film?
  15. 15.56 + 19 =
  16. 16.328 − 294 =
  17. 17.59 − 9 =
  18. 18.You buy a storybook for ₹44 and pay with a ₹100 note. How much change do you get, in rupees?
  19. 19.A train leaves at 8:30 and reaches the next city at 11:45. How many minutes is the journey?
  20. 20.You buy a water bottle for ₹19 and a pen for ₹24. You pay with a ₹100 note. How much change do you get, in rupees?
  21. 21.13 + 12 =
  22. 22.Best estimate of 535 + 621? (a) 1300 (b) 900 (c) 1100
  23. 23.29 + 30 =
  24. 24.105 − 74 =
  25. 25.28 + 27 =
  26. 26.75 − 53 =
  27. 27.7 + 9 =
  28. 28.129 children stand in rows of 9. How many full rows can they make?
  29. 29.20 + 22 =
  30. 30.59 + 14 =
  31. 31.A train leaves at 6:00 and reaches the next city at 6:30. How many minutes is the journey?
  32. 32.10% of ₹140 =
  33. 33.63 − 46 =
  34. 34.You buy a notebook for ₹39 and pay with a ₹100 note. How much change do you get, in rupees?
  35. 35.153 + 99 =
  36. 36.A train leaves at 4:35 and reaches the next city at 5:00. How many minutes is the journey?
  37. 37.Double 26 =
  38. 38.12 + 11 =
  39. 39.53 − 37 =
  40. 40.Double 29 =

Answer key

  1. 444
  2. 17
  3. 36
  4. 800
  5. 9
  6. 54
  7. 30
  8. 1400
  9. 11
  10. 1200
  11. 70
  12. 30
  13. 122
  14. 200
  15. 75
  16. 34
  17. 50
  18. 56
  19. 195
  20. 57
  21. 25
  22. 1100
  23. 59
  24. 31
  25. 55
  26. 22
  27. 16
  28. 14
  29. 42
  30. 73
  31. 30
  32. 14
  33. 17
  34. 61
  35. 252
  36. 25
  37. 52
  38. 23
  39. 16
  40. 58

Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths