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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 416 · 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. 1.10% of 140 =
  2. 2.6 + 4 + 1 + 4 =
  3. 3.483 + 48 =
  4. 4.98 − 17 =
  5. 5.10% of 100 =
  6. 6.5 × 15 =
  7. 7.1950 ÷ 50 =
  8. 8.15% of 160 =
  9. 9.₹79.65 − ₹38.65 =
  10. 10.401 + 89 =
  11. 11.103 + 78 =
  12. 12.1450 ÷ 50 =
  13. 13.₹77.65 + ₹38.65 =
  14. 14.Check with nines: 206 + 362 = 568. Correct or wrong? (a) correct (b) wrong
  15. 15.59 × 50 =
  16. 16.89² =
  17. 17.60 × 15 =
  18. 18.8 + 9 + 5 + 6 + 5 =
  19. 19.295 ÷ 5 =
  20. 20.51 × 5 =
  21. 21.81 + 24 + 23 + 85 =
  22. 22.422 + 19 =
  23. 23.50% of 70 =
  24. 24.10% of 610 =
  25. 25.19 × 13 =
  26. 26.50% of 60 =
  27. 27.1 + 7 + 2 + 9 =
  28. 28.₹47.55 − ₹46.35 =
  29. 29.401 − 19 =
  30. 30.₹46.70 + ₹29.50 =
  31. 31.92 × 50 =
  32. 32.57 × 8 =
  33. 33.₹52.70 − ₹7.50 =
  34. 34.Best estimate of 797 × 4? (a) 3200 (b) 320 (c) 6400 (d) 32000
  35. 35.600 ÷ 25 =
  36. 36.89² =
  37. 37.29 × 8 =
  38. 38.10% of 120 =
  39. 39.96 × 5 =
  40. 40.31 + 39 + 71 + 16 =

Answer key

  1. 14
  2. 15
  3. 531
  4. 81
  5. 10
  6. 75
  7. 39
  8. 24
  9. 41
  10. 490
  11. 181
  12. 29
  13. 116.3
  14. correct
  15. 2950
  16. 7921
  17. 900
  18. 33
  19. 59
  20. 255
  21. 213
  22. 441
  23. 35
  24. 61
  25. 247
  26. 30
  27. 19
  28. 1.2
  29. 382
  30. 76.2
  31. 4600
  32. 456
  33. 45.2
  34. 3200
  35. 24
  36. 7921
  37. 232
  38. 12
  39. 480
  40. 157

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