← Mixed mental challenge lesson New set →

Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 318 · 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.Best estimate of 39 × 96? (a) 400 (b) 4000 (c) 40000
  2. 2.A cricket match starts at 2:50 and the first innings ends at 4:05. How many minutes did the innings last?
  3. 3.16² =
  4. 4.38 × 4 =
  5. 5.24 − 19 =
  6. 6.10% of ₹590 =
  7. 7.5 + 7 =
  8. 8.42 × 4 =
  9. 9.Double 27 =
  10. 10.75 × 7 =
  11. 11.25% of ₹900 =
  12. 12.31 × 7 =
  13. 13.20 + 21 =
  14. 14.25² =
  15. 15.19² =
  16. 16.377 + 99 =
  17. 17.10% of ₹640 =
  18. 18.61 + 19 =
  19. 19.72 − 39 =
  20. 20.29 + 2 =
  21. 21.Half of 128 =
  22. 22.76 + 5 =
  23. 23.You buy a kite for ₹14 and a pen for ₹38. You pay with a ₹100 note. How much change do you get, in rupees?
  24. 24.18 + 4 =
  25. 25.201 − 99 =
  26. 26.Double 76 =
  27. 27.30 + 32 =
  28. 28.60 + ? = 100
  29. 29.69 − 59 =
  30. 30.20 + 19 =
  31. 31.107 − 94 =
  32. 32.101 − 77 =
  33. 33.Best estimate of 616 + 533? (a) 1300 (b) 900 (c) 1100
  34. 34.Double 91 =
  35. 35.Best estimate of 34 × 77? (a) 24000 (b) 240 (c) 2400
  36. 36.112 ÷ 7 =
  37. 37.A train leaves at 1:30 and reaches the next city at 4:00. How many minutes is the journey?
  38. 38.15 + 16 =
  39. 39.17 + 19 =
  40. 40.11 + 13 =

Answer key

  1. 4000
  2. 75
  3. 256
  4. 152
  5. 5
  6. 59
  7. 12
  8. 168
  9. 54
  10. 525
  11. 225
  12. 217
  13. 41
  14. 625
  15. 361
  16. 476
  17. 64
  18. 80
  19. 33
  20. 31
  21. 64
  22. 81
  23. 48
  24. 22
  25. 102
  26. 152
  27. 62
  28. 40
  29. 10
  30. 39
  31. 13
  32. 24
  33. 1100
  34. 182
  35. 2400
  36. 16
  37. 150
  38. 31
  39. 36
  40. 24

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