← Mixed mental challenge lesson New set →

Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 811 · 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.Double 95 =
  2. 2.19² =
  3. 3.14² =
  4. 4.29² =
  5. 5.81 + ? = 100
  6. 6.503 − 485 =
  7. 7.462 ÷ 7 =
  8. 8.56 × 4 =
  9. 9.176 ÷ 4 =
  10. 10.21² =
  11. 11.31 + 13 =
  12. 12.Double 86 =
  13. 13.50% of ₹420 =
  14. 14.Double 21 =
  15. 15.Double 27 =
  16. 16.A cricket match starts at 1:05 and the first innings ends at 3:15. How many minutes did the innings last?
  17. 17.204 ÷ 4 =
  18. 18.320 ÷ 8 =
  19. 19.79 − 45 =
  20. 20.660 − 99 =
  21. 21.10% of ₹70 =
  22. 22.4 + ? = 10
  23. 23.69 + 7 =
  24. 24.Double 22 =
  25. 25.25 + 26 =
  26. 26.22 × 8 =
  27. 27.7 + 8 =
  28. 28.85 × 3 =
  29. 29.60 − 17 =
  30. 30.21 × 5 =
  31. 31.9 + 4 =
  32. 32.You buy a box of crayons for ₹14 and pay with a ₹100 note. How much change do you get, in rupees?
  33. 33.21 + 23 =
  34. 34.28 children stand in rows of 3. How many full rows can they make?
  35. 35.63 + 53 =
  36. 36.You buy a notebook for ₹470 and pay with a ₹500 note. How much change do you get, in rupees?
  37. 37.24² =
  38. 38.12² =
  39. 39.41 − 29 =
  40. 40.60 laddoos are packed in boxes of 8. How many laddoos are left over?

Answer key

  1. 190
  2. 361
  3. 196
  4. 841
  5. 19
  6. 18
  7. 66
  8. 224
  9. 44
  10. 441
  11. 44
  12. 172
  13. 210
  14. 42
  15. 54
  16. 130
  17. 51
  18. 40
  19. 34
  20. 561
  21. 7
  22. 6
  23. 76
  24. 44
  25. 51
  26. 176
  27. 15
  28. 255
  29. 43
  30. 105
  31. 13
  32. 86
  33. 44
  34. 9
  35. 116
  36. 30
  37. 576
  38. 144
  39. 12
  40. 4

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