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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 152 · 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. 1.269 − 59 =
  2. 2.₹22.05 + ₹24.40 =
  3. 3.5% of 370 =
  4. 4.181 + 57 =
  5. 5.323 + 59 =
  6. 6.57 × 5 =
  7. 7.284 − 18 =
  8. 8.450 ÷ 50 =
  9. 9.77 + 68 =
  10. 10.3 + 3 + 8 + 7 =
  11. 11.Best estimate of 503 × 8? (a) 8000 (b) 40000 (c) 400 (d) 4000
  12. 12.Best estimate of 51 × 18? (a) 10000 (b) 2000 (c) 100 (d) 1000
  13. 13.Best estimate of 69 × 48? (a) 3500 (b) 350 (c) 7000 (d) 35000
  14. 14.12 × 18 =
  15. 15.Check with nines: 31 × 15 = 465. Correct or wrong? (a) wrong (b) correct
  16. 16.50 × 15 =
  17. 17.51 × 15 =
  18. 18.2 + 3 + 3 + 7 + 8 =
  19. 19.15 × 15 =
  20. 20.625 ÷ 25 =
  21. 21.5 + 1 + 3 + 7 =
  22. 22.8 + 1 + 9 + 7 + 8 =
  23. 23.74 × 50 =
  24. 24.25% of 270 =
  25. 25.61² =
  26. 26.18 + 86 + 19 + 75 =
  27. 27.93 + 28 =
  28. 28.37 × 15 =
  29. 29.20% of 40 =
  30. 30.4 + 4 + 7 + 6 =
  31. 31.₹85.80 − ₹9.40 =
  32. 32.16 × 15 =
  33. 33.7 + 7 + 5 + 9 + 3 =
  34. 34.79 + 29 =
  35. 35.17 × 15 =
  36. 36.Best estimate of 32 × 28? (a) 9000 (b) 1800 (c) 90 (d) 900
  37. 37.15% of 510 =
  38. 38.₹69.90 + ₹38.10 =
  39. 39.6 + 4 + 4 + 3 + 2 =
  40. 40.13 × 14 =

Answer key

  1. 210
  2. 46.45
  3. 18.5
  4. 238
  5. 382
  6. 285
  7. 266
  8. 9
  9. 145
  10. 21
  11. 4000
  12. 1000
  13. 3500
  14. 216
  15. correct
  16. 750
  17. 765
  18. 23
  19. 225
  20. 25
  21. 16
  22. 33
  23. 3700
  24. 67.5
  25. 3721
  26. 198
  27. 121
  28. 555
  29. 8
  30. 21
  31. 76.4
  32. 240
  33. 31
  34. 108
  35. 255
  36. 900
  37. 76.5
  38. 108
  39. 19
  40. 182

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