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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 255 · 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. 1.3 + 4 + 7 + 6 + 3 =
  2. 2.29² =
  3. 3.56 × 15 =
  4. 4.375 ÷ 5 =
  5. 5.46 × 15 =
  6. 6.85 × 50 =
  7. 7.₹5.75 + ₹23.25 =
  8. 8.9 + 7 + 1 + 3 =
  9. 9.5 + 5 + 9 + 4 =
  10. 10.39² =
  11. 11.59 + 79 + 66 + 26 =
  12. 12.670 ÷ 5 =
  13. 13.22 × 5 =
  14. 14.₹71.45 − ₹7.20 =
  15. 15.14 × 19 =
  16. 16.1000 ÷ 50 =
  17. 17.Best estimate of 499 × 9? (a) 45000 (b) 450 (c) 9000 (d) 4500
  18. 18.11 × 14 =
  19. 19.15% of 810 =
  20. 20.413 − 56 =
  21. 21.8 + 2 + 2 + 3 =
  22. 22.56 + 84 + 68 + 33 =
  23. 23.268 + 98 =
  24. 24.950 ÷ 25 =
  25. 25.16 × 15 =
  26. 26.₹80.65 − ₹29.85 =
  27. 27.6 + 3 + 4 + 6 =
  28. 28.650 ÷ 25 =
  29. 29.10 × 15 =
  30. 30.30 + 24 + 57 + 84 =
  31. 31.15 × 5 =
  32. 32.Best estimate of 401 × 3? (a) 12000 (b) 1200 (c) 120 (d) 2400
  33. 33.29 × 15 =
  34. 34.149 + 57 =
  35. 35.1% of 590 =
  36. 36.Best estimate of 69 × 18? (a) 14000 (b) 140 (c) 2800 (d) 1400
  37. 37.Check with nines: 641 + 537 = 1178. Correct or wrong? (a) correct (b) wrong
  38. 38.8 + 5 + 4 + 4 + 5 =
  39. 39.282 + 28 =
  40. 40.800 ÷ 50 =

Answer key

  1. 23
  2. 841
  3. 840
  4. 75
  5. 690
  6. 4250
  7. 29
  8. 20
  9. 23
  10. 1521
  11. 230
  12. 134
  13. 110
  14. 64.25
  15. 266
  16. 20
  17. 4500
  18. 154
  19. 121.5
  20. 357
  21. 15
  22. 241
  23. 366
  24. 38
  25. 240
  26. 50.8
  27. 19
  28. 26
  29. 150
  30. 195
  31. 75
  32. 1200
  33. 435
  34. 206
  35. 5.9
  36. 1400
  37. correct
  38. 26
  39. 310
  40. 16

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