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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 450 · 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. 1.11 × 15 =
  2. 2.391 − 18 =
  3. 3.13 × 18 =
  4. 4.45 + 72 + 74 + 44 =
  5. 5.19² =
  6. 6.19 × 19 =
  7. 7.61² =
  8. 8.72 × 5 =
  9. 9.49 × 5 =
  10. 10.409 − 98 =
  11. 11.450 ÷ 50 =
  12. 12.6 × 15 =
  13. 13.28 + 72 + 36 + 67 =
  14. 14.₹32.35 + ₹25.15 =
  15. 15.Best estimate of 49 × 59? (a) 30000 (b) 6000 (c) 300 (d) 3000
  16. 16.89² =
  17. 17.33 + 31 + 84 + 44 =
  18. 18.34 × 50 =
  19. 19.81² =
  20. 20.20% of 260 =
  21. 21.37 × 5 =
  22. 22.8 + 4 + 3 + 2 =
  23. 23.136 + 77 =
  24. 24.21² =
  25. 25.18 × 15 =
  26. 26.₹34.20 + ₹22.10 =
  27. 27.9 + 5 + 7 + 5 + 3 =
  28. 28.17 × 13 =
  29. 29.69² =
  30. 30.16 × 13 =
  31. 31.5 × 15 =
  32. 32.61 × 15 =
  33. 33.Best estimate of 72 × 69? (a) 49000 (b) 490 (c) 4900 (d) 9800
  34. 34.15 × 4 =
  35. 35.456 + 49 =
  36. 36.Best estimate of 699 × 9? (a) 630 (b) 6300 (c) 12600 (d) 63000
  37. 37.390 ÷ 5 =
  38. 38.59 × 15 =
  39. 39.50% of 410 =
  40. 40.25% of 230 =

Answer key

  1. 165
  2. 373
  3. 234
  4. 235
  5. 361
  6. 361
  7. 3721
  8. 360
  9. 245
  10. 311
  11. 9
  12. 90
  13. 203
  14. 57.5
  15. 3000
  16. 7921
  17. 192
  18. 1700
  19. 6561
  20. 52
  21. 185
  22. 17
  23. 213
  24. 441
  25. 270
  26. 56.3
  27. 29
  28. 221
  29. 4761
  30. 208
  31. 75
  32. 915
  33. 4900
  34. 60
  35. 505
  36. 6300
  37. 78
  38. 885
  39. 205
  40. 57.5

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