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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 540 · 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. 1.128 − 17 =
  2. 2.315 ÷ 5 =
  3. 3.400 ÷ 25 =
  4. 4.152 × 4 =
  5. 5.Check with nines: 12 × 34 = 408. Correct or wrong? (a) correct (b) wrong
  6. 6.1 + 8 + 6 + 9 + 2 =
  7. 7.₹26.60 − ₹23.40 =
  8. 8.79² =
  9. 9.59 × 15 =
  10. 10.Check with nines: 266 + 886 = 1158. Correct or wrong? (a) correct (b) wrong
  11. 11.Check with nines: 20 × 36 = 720. Correct or wrong? (a) correct (b) wrong
  12. 12.₹44.25 − ₹10.20 =
  13. 13.12 + 59 + 21 + 48 =
  14. 14.₹26.55 + ₹11.85 =
  15. 15.9 + 5 + 3 + 5 + 7 =
  16. 16.69 × 50 =
  17. 17.53 × 15 =
  18. 18.301 − 69 =
  19. 19.406 − 27 =
  20. 20.15% of 480 =
  21. 21.410 ÷ 5 =
  22. 22.15% of 190 =
  23. 23.94 × 5 =
  24. 24.237 + 37 =
  25. 25.12 × 12 =
  26. 26.28 × 50 =
  27. 27.59 × 15 =
  28. 28.19 × 50 =
  29. 29.15% of 300 =
  30. 30.9 + 6 + 2 + 7 + 1 =
  31. 31.Best estimate of 403 × 4? (a) 1600 (b) 160 (c) 16000 (d) 3200
  32. 32.29 + 67 =
  33. 33.73 + 50 + 89 + 47 =
  34. 34.1 + 2 + 3 + 2 + 7 =
  35. 35.2 + 6 + 9 + 4 + 6 =
  36. 36.56 + 52 + 75 + 61 =
  37. 37.62 + 88 =
  38. 38.13 × 5 =
  39. 39.1 + 2 + 9 + 9 + 7 =
  40. 40.32 + 41 + 50 + 22 =

Answer key

  1. 111
  2. 63
  3. 16
  4. 608
  5. correct
  6. 26
  7. 3.2
  8. 6241
  9. 885
  10. wrong
  11. correct
  12. 34.05
  13. 140
  14. 38.4
  15. 29
  16. 3450
  17. 795
  18. 232
  19. 379
  20. 72
  21. 82
  22. 28.5
  23. 470
  24. 274
  25. 144
  26. 1400
  27. 885
  28. 950
  29. 45
  30. 25
  31. 1600
  32. 96
  33. 259
  34. 15
  35. 27
  36. 244
  37. 150
  38. 65
  39. 28
  40. 145

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