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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 314 · 40 questions
TalentJR

The fast method (Spot the trick): A 7, 8 or 9 in the ones place → round and fix. × 4, 8, 5, 50 or 15 → doubling or halving tricks. ÷ 5, 25 or 50 → double first. A percentage → start from 10%. Checking or estimating → nines or rounding.

NameDateTime takenScore ___ / 40
  1. 1.585 ÷ 5 =
  2. 2.₹87.20 − ₹26.65 =
  3. 3.₹18.10 + ₹12.65 =
  4. 4.₹97.70 + ₹6.25 =
  5. 5.25 × 4 =
  6. 6.1025 ÷ 25 =
  7. 7.283 + 19 =
  8. 8.1550 ÷ 50 =
  9. 9.19 × 18 =
  10. 10.49² =
  11. 11.Best estimate of 21 × 52? (a) 10000 (b) 1000 (c) 100 (d) 2000
  12. 12.Best estimate of 401 × 6? (a) 2400 (b) 4800 (c) 24000 (d) 240
  13. 13.Best estimate of 199 × 4? (a) 80 (b) 1600 (c) 8000 (d) 800
  14. 14.1075 ÷ 25 =
  15. 15.45 × 15 =
  16. 16.5 + 8 + 6 + 2 + 2 =
  17. 17.200 + 57 =
  18. 18.15 × 17 =
  19. 19.₹77.95 − ₹2.15 =
  20. 20.29 × 15 =
  21. 21.31² =
  22. 22.Check with nines: 81 × 86 = 6971. Correct or wrong? (a) wrong (b) correct
  23. 23.925 ÷ 5 =
  24. 24.835 ÷ 5 =
  25. 25.38 × 8 =
  26. 26.51 × 5 =
  27. 27.11 + 76 + 82 + 68 =
  28. 28.29 × 5 =
  29. 29.19 × 5 =
  30. 30.16 × 19 =
  31. 31.84 − 27 =
  32. 32.51² =
  33. 33.62 − 26 =
  34. 34.536 − 58 =
  35. 35.32 × 5 =
  36. 36.530 − 48 =
  37. 37.49² =
  38. 38.529 − 97 =
  39. 39.20 × 8 =
  40. 40.1 + 8 + 2 + 7 + 2 =

Answer key

  1. 117
  2. 60.55
  3. 30.75
  4. 103.95
  5. 100
  6. 41
  7. 302
  8. 31
  9. 342
  10. 2401
  11. 1000
  12. 2400
  13. 800
  14. 43
  15. 675
  16. 23
  17. 257
  18. 255
  19. 75.8
  20. 435
  21. 961
  22. wrong
  23. 185
  24. 167
  25. 304
  26. 255
  27. 237
  28. 145
  29. 95
  30. 304
  31. 57
  32. 2601
  33. 36
  34. 478
  35. 160
  36. 482
  37. 2401
  38. 432
  39. 160
  40. 20

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