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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 678 · 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.Best estimate of 899 × 4? (a) 36000 (b) 7200 (c) 360 (d) 3600
  2. 2.21 × 50 =
  3. 3.20% of 630 =
  4. 4.₹49.75 + ₹47.55 =
  5. 5.153 + 98 =
  6. 6.374 − 47 =
  7. 7.₹72.70 − ₹43.90 =
  8. 8.61 × 4 =
  9. 9.27 + 37 + 21 + 66 =
  10. 10.5% of 170 =
  11. 11.39 × 50 =
  12. 12.29 × 5 =
  13. 13.17 × 11 =
  14. 14.Best estimate of 102 × 6? (a) 600 (b) 60 (c) 1200 (d) 6000
  15. 15.48 + 89 + 20 + 41 =
  16. 16.38 + 76 + 84 + 67 =
  17. 17.64 × 5 =
  18. 18.78 + 18 + 14 + 89 =
  19. 19.34 + 11 + 27 + 61 =
  20. 20.44 × 15 =
  21. 21.600 ÷ 5 =
  22. 22.380 − 16 =
  23. 23.483 + 27 =
  24. 24.6 + 3 + 7 + 8 + 4 =
  25. 25.20% of 780 =
  26. 26.22 × 8 =
  27. 27.31 × 5 =
  28. 28.10 × 15 =
  29. 29.53 × 50 =
  30. 30.16 × 11 =
  31. 31.1300 ÷ 50 =
  32. 32.15% of 370 =
  33. 33.45 × 4 =
  34. 34.42 + 39 =
  35. 35.562 − 58 =
  36. 36.19 × 18 =
  37. 37.149 + 29 =
  38. 38.50% of 640 =
  39. 39.403 − 89 =
  40. 40.20 + 66 + 49 + 64 =

Answer key

  1. 3600
  2. 1050
  3. 126
  4. 97.3
  5. 251
  6. 327
  7. 28.8
  8. 244
  9. 151
  10. 8.5
  11. 1950
  12. 145
  13. 187
  14. 600
  15. 198
  16. 265
  17. 320
  18. 199
  19. 133
  20. 660
  21. 120
  22. 364
  23. 510
  24. 28
  25. 156
  26. 176
  27. 155
  28. 150
  29. 2650
  30. 176
  31. 26
  32. 55.5
  33. 180
  34. 81
  35. 504
  36. 342
  37. 178
  38. 320
  39. 314
  40. 199

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