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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 732 · 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. 1.1500 ÷ 50 =
  2. 2.19 × 14 =
  3. 3.850 ÷ 50 =
  4. 4.64 + 31 + 75 + 24 =
  5. 5.Best estimate of 91 × 62? (a) 540 (b) 54000 (c) 10800 (d) 5400
  6. 6.81² =
  7. 7.1% of 390 =
  8. 8.396 + 69 =
  9. 9.18 × 14 =
  10. 10.51² =
  11. 11.61 + 86 + 89 + 70 =
  12. 12.15 × 11 =
  13. 13.12 × 15 =
  14. 14.₹30.90 − ₹14.75 =
  15. 15.57 × 5 =
  16. 16.41² =
  17. 17.7 + 6 + 8 + 2 + 3 =
  18. 18.160 − 58 =
  19. 19.9 + 6 + 1 + 9 =
  20. 20.496 − 28 =
  21. 21.15% of 420 =
  22. 22.81 × 5 =
  23. 23.4 + 2 + 1 + 8 =
  24. 24.135 − 28 =
  25. 25.19 × 11 =
  26. 26.17 × 13 =
  27. 27.25 + 89 + 51 + 35 =
  28. 28.56 − 38 =
  29. 29.41 × 15 =
  30. 30.Check with nines: 194 + 363 = 557. Correct or wrong? (a) wrong (b) correct
  31. 31.47 + 49 + 62 + 12 =
  32. 32.₹28.60 + ₹23.45 =
  33. 33.1 + 6 + 9 + 5 =
  34. 34.102 − 98 =
  35. 35.184 + 88 =
  36. 36.20 × 15 =
  37. 37.6 + 1 + 7 + 5 + 5 =
  38. 38.11 × 15 =
  39. 39.900 ÷ 25 =
  40. 40.18 × 15 =

Answer key

  1. 30
  2. 266
  3. 17
  4. 194
  5. 5400
  6. 6561
  7. 3.9
  8. 465
  9. 252
  10. 2601
  11. 306
  12. 165
  13. 180
  14. 16.15
  15. 285
  16. 1681
  17. 26
  18. 102
  19. 25
  20. 468
  21. 63
  22. 405
  23. 15
  24. 107
  25. 209
  26. 221
  27. 200
  28. 18
  29. 615
  30. correct
  31. 170
  32. 52.05
  33. 21
  34. 4
  35. 272
  36. 300
  37. 24
  38. 165
  39. 36
  40. 270

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