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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 282 · 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. 1.17 × 11 =
  2. 2.69² =
  3. 3.36 + 74 + 31 + 18 =
  4. 4.272 − 67 =
  5. 5.55 × 4 =
  6. 6.123 × 4 =
  7. 7.33 × 4 =
  8. 8.27 × 5 =
  9. 9.20% of 330 =
  10. 10.59² =
  11. 11.5% of 740 =
  12. 12.15% of 130 =
  13. 13.8 + 2 + 3 + 3 =
  14. 14.455 − 68 =
  15. 15.₹34.30 − ₹25.25 =
  16. 16.37 × 8 =
  17. 17.10% of 620 =
  18. 18.104 − 19 =
  19. 19.45 × 15 =
  20. 20.38 × 8 =
  21. 21.44 × 5 =
  22. 22.970 ÷ 5 =
  23. 23.15 × 14 =
  24. 24.₹16.30 + ₹13.30 =
  25. 25.4 + 1 + 5 + 5 =
  26. 26.243 + 57 =
  27. 27.14 × 5 =
  28. 28.1375 ÷ 25 =
  29. 29.10% of 770 =
  30. 30.91² =
  31. 31.79² =
  32. 32.Check with nines: 77 × 27 = 2079. Correct or wrong? (a) correct (b) wrong
  33. 33.470 − 67 =
  34. 34.425 − 96 =
  35. 35.6 + 6 + 6 + 4 =
  36. 36.15% of 170 =
  37. 37.36 × 50 =
  38. 38.61² =
  39. 39.81² =
  40. 40.Best estimate of 402 × 3? (a) 120 (b) 1200 (c) 2400 (d) 12000

Answer key

  1. 187
  2. 4761
  3. 159
  4. 205
  5. 220
  6. 492
  7. 132
  8. 135
  9. 66
  10. 3481
  11. 37
  12. 19.5
  13. 16
  14. 387
  15. 9.05
  16. 296
  17. 62
  18. 85
  19. 675
  20. 304
  21. 220
  22. 194
  23. 210
  24. 29.6
  25. 15
  26. 300
  27. 70
  28. 55
  29. 77
  30. 8281
  31. 6241
  32. correct
  33. 403
  34. 329
  35. 22
  36. 25.5
  37. 1800
  38. 3721
  39. 6561
  40. 1200

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