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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 966 · 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. 1.22 × 8 =
  2. 2.19 + 20 =
  3. 3.Best estimate of 630 + 174? (a) 600 (b) 800 (c) 1000
  4. 4.43 + 34 =
  5. 5.A cricket match starts at 6:55 and the first innings ends at 9:25. How many minutes did the innings last?
  6. 6.60 + 66 =
  7. 7.Best estimate of 42 × 92? (a) 360 (b) 36000 (c) 3600
  8. 8.213 − 194 =
  9. 9.85 + 15 =
  10. 10.49 + 6 =
  11. 11.63 × 4 =
  12. 12.10% of ₹630 =
  13. 13.28 × 8 =
  14. 14.761 − 99 =
  15. 15.24 + 23 =
  16. 16.67 − 41 =
  17. 17.48 + 4 =
  18. 18.224 ÷ 4 =
  19. 19.Half of 86 =
  20. 20.423 ÷ 9 =
  21. 21.310 − 284 =
  22. 22.You buy a kite for ₹48 and pay with a ₹100 note. How much change do you get, in rupees?
  23. 23.65 − 42 =
  24. 24.Double 37 =
  25. 25.25 + 26 =
  26. 26.You buy a box of crayons for ₹20 and a pen for ₹26. You pay with a ₹100 note. How much change do you get, in rupees?
  27. 27.Half of 60 =
  28. 28.15 + 16 =
  29. 29.52 − 33 =
  30. 30.74 × 4 =
  31. 31.5% of ₹220 =
  32. 32.12 × 8 =
  33. 33.70 + ? = 100
  34. 34.Half of 102 =
  35. 35.What is the remainder when 37 is divided by 7?
  36. 36.236 ÷ 4 =
  37. 37.25% of ₹290 =
  38. 38.74 − 43 =
  39. 39.12² =
  40. 40.517 − 491 =

Answer key

  1. 176
  2. 39
  3. 800
  4. 77
  5. 150
  6. 126
  7. 3600
  8. 19
  9. 100
  10. 55
  11. 252
  12. 63
  13. 224
  14. 662
  15. 47
  16. 26
  17. 52
  18. 56
  19. 43
  20. 47
  21. 26
  22. 52
  23. 23
  24. 74
  25. 51
  26. 54
  27. 30
  28. 31
  29. 19
  30. 296
  31. 11
  32. 96
  33. 30
  34. 51
  35. 2
  36. 59
  37. 72.5
  38. 31
  39. 144
  40. 26

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