← Mixed mental challenge lesson New set →

Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 269 · 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. 1.648 ÷ 8 =
  2. 2.You buy a bag of mangoes for ₹78 and pay with a ₹100 note. How much change do you get, in rupees?
  3. 3.184 ÷ 4 =
  4. 4.61 + 27 =
  5. 5.27 × 4 =
  6. 6.22 + 29 =
  7. 7.504 − 498 =
  8. 8.3 + ? = 10
  9. 9.52 ÷ 4 =
  10. 10.18 + 17 =
  11. 11.61 × 9 =
  12. 12.19 × 8 =
  13. 13.2 + ? = 10
  14. 14.5 + ? = 10
  15. 15.136 ÷ 8 =
  16. 16.69 × 5 =
  17. 17.51 × 6 =
  18. 18.766 + 99 =
  19. 19.32 × 7 =
  20. 20.Double 96 =
  21. 21.Double 58 =
  22. 22.You start your homework at 3:05 and finish at 3:55. How many minutes did you work?
  23. 23.66 − 14 =
  24. 24.16 × 8 =
  25. 25.56 × 4 =
  26. 26.53 + 12 =
  27. 27.You buy a bag of mangoes for ₹38 and a pen for ₹40. You pay with a ₹100 note. How much change do you get, in rupees?
  28. 28.17 + 9 =
  29. 29.Double 38 =
  30. 30.51 × 5 =
  31. 31.Best estimate of 76 × 82? (a) 64000 (b) 640 (c) 6400
  32. 32.46 × 8 =
  33. 33.144 ÷ 8 =
  34. 34.405 ÷ 5 =
  35. 35.25% of ₹770 =
  36. 36.26 + 29 =
  37. 37.What is the remainder when 49 is divided by 8?
  38. 38.16 + 7 =
  39. 39.49 + 64 =
  40. 40.75 + 89 =

Answer key

  1. 81
  2. 22
  3. 46
  4. 88
  5. 108
  6. 51
  7. 6
  8. 7
  9. 13
  10. 35
  11. 549
  12. 152
  13. 8
  14. 5
  15. 17
  16. 345
  17. 306
  18. 865
  19. 224
  20. 192
  21. 116
  22. 50
  23. 52
  24. 128
  25. 224
  26. 65
  27. 22
  28. 26
  29. 76
  30. 255
  31. 6400
  32. 368
  33. 18
  34. 81
  35. 192.5
  36. 55
  37. 1
  38. 23
  39. 113
  40. 164

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