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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 750 · 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. 1.145 + 47 =
  2. 2.196 + 77 =
  3. 3.312 + 19 =
  4. 4.37 × 5 =
  5. 5.28 + 46 + 32 + 38 =
  6. 6.1% of 480 =
  7. 7.4 + 1 + 9 + 6 + 2 =
  8. 8.427 + 29 =
  9. 9.1% of 550 =
  10. 10.12 × 16 =
  11. 11.460 ÷ 5 =
  12. 12.12 × 17 =
  13. 13.Best estimate of 68 × 49? (a) 35000 (b) 350 (c) 7000 (d) 3500
  14. 14.258 + 27 =
  15. 15.1150 ÷ 25 =
  16. 16.7 + 7 + 6 + 3 + 7 =
  17. 17.1% of 540 =
  18. 18.25% of 880 =
  19. 19.₹85.05 − ₹9.10 =
  20. 20.₹79.50 − ₹14.90 =
  21. 21.437 − 38 =
  22. 22.54 + 74 + 59 + 34 =
  23. 23.91² =
  24. 24.1 + 1 + 9 + 4 + 2 =
  25. 25.64 × 50 =
  26. 26.4 + 6 + 9 + 1 + 1 =
  27. 27.37 × 8 =
  28. 28.Best estimate of 97 × 5? (a) 500 (b) 1000 (c) 5000 (d) 50
  29. 29.61² =
  30. 30.30 × 50 =
  31. 31.435 − 89 =
  32. 32.18 × 50 =
  33. 33.₹12.95 − ₹7.85 =
  34. 34.1900 ÷ 50 =
  35. 35.Best estimate of 102 × 6? (a) 60 (b) 600 (c) 6000 (d) 1200
  36. 36.1100 ÷ 50 =
  37. 37.Best estimate of 79 × 32? (a) 4800 (b) 24000 (c) 2400 (d) 240
  38. 38.35 × 8 =
  39. 39.27 + 69 + 77 + 78 =
  40. 40.48 × 50 =

Answer key

  1. 192
  2. 273
  3. 331
  4. 185
  5. 144
  6. 4.8
  7. 22
  8. 456
  9. 5.5
  10. 192
  11. 92
  12. 204
  13. 3500
  14. 285
  15. 46
  16. 30
  17. 5.4
  18. 220
  19. 75.95
  20. 64.6
  21. 399
  22. 221
  23. 8281
  24. 17
  25. 3200
  26. 21
  27. 296
  28. 500
  29. 3721
  30. 1500
  31. 346
  32. 900
  33. 5.1
  34. 38
  35. 600
  36. 22
  37. 2400
  38. 280
  39. 251
  40. 2400

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