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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 267 · 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.Check with nines: 53 × 71 = 3771. Correct or wrong? (a) correct (b) wrong
  2. 2.₹52.45 − ₹20.10 =
  3. 3.₹24.20 − ₹19.15 =
  4. 4.39² =
  5. 5.₹79.30 − ₹15.40 =
  6. 6.Best estimate of 898 × 3? (a) 270 (b) 5400 (c) 2700 (d) 27000
  7. 7.₹28.80 + ₹16.95 =
  8. 8.18 × 14 =
  9. 9.₹27.45 + ₹12.70 =
  10. 10.93 − 86 =
  11. 11.19 × 15 =
  12. 12.85 × 50 =
  13. 13.6 + 2 + 6 + 4 =
  14. 14.12 × 12 =
  15. 15.650 ÷ 50 =
  16. 16.123 + 97 =
  17. 17.5% of 680 =
  18. 18.11 × 15 =
  19. 19.11 × 17 =
  20. 20.725 ÷ 25 =
  21. 21.55 × 5 =
  22. 22.Check with nines: 35 × 95 = 3325. Correct or wrong? (a) correct (b) wrong
  23. 23.Best estimate of 99 × 7? (a) 700 (b) 70 (c) 7000 (d) 1400
  24. 24.5% of 660 =
  25. 25.20% of 600 =
  26. 26.15 × 14 =
  27. 27.₹32.75 − ₹12.95 =
  28. 28.16 × 5 =
  29. 29.59² =
  30. 30.47 + 52 + 29 + 69 =
  31. 31.7 + 4 + 5 + 6 =
  32. 32.375 ÷ 5 =
  33. 33.22 × 15 =
  34. 34.18 × 50 =
  35. 35.₹60.65 + ₹41.85 =
  36. 36.82 − 39 =
  37. 37.49² =
  38. 38.43 × 5 =
  39. 39.Best estimate of 403 × 3? (a) 2400 (b) 120 (c) 12000 (d) 1200
  40. 40.₹83.05 − ₹10.45 =

Answer key

  1. wrong
  2. 32.35
  3. 5.05
  4. 1521
  5. 63.9
  6. 2700
  7. 45.75
  8. 252
  9. 40.15
  10. 7
  11. 285
  12. 4250
  13. 18
  14. 144
  15. 13
  16. 220
  17. 34
  18. 165
  19. 187
  20. 29
  21. 275
  22. correct
  23. 700
  24. 33
  25. 120
  26. 210
  27. 19.8
  28. 80
  29. 3481
  30. 197
  31. 22
  32. 75
  33. 330
  34. 900
  35. 102.5
  36. 43
  37. 2401
  38. 215
  39. 1200
  40. 72.6

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