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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 743 · 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. 1.29 + 15 + 41 + 86 =
  2. 2.5 + 2 + 9 + 1 =
  3. 3.865 ÷ 5 =
  4. 4.5% of 710 =
  5. 5.366 + 98 =
  6. 6.Check with nines: 67 × 16 = 1079. Correct or wrong? (a) wrong (b) correct
  7. 7.12 × 15 =
  8. 8.8 + 3 + 2 + 4 =
  9. 9.368 + 89 =
  10. 10.9 + 3 + 1 + 1 =
  11. 11.Check with nines: 329 + 801 = 1130. Correct or wrong? (a) correct (b) wrong
  12. 12.77 + 31 + 72 + 81 =
  13. 13.Best estimate of 29 × 58? (a) 1800 (b) 180 (c) 3600 (d) 18000
  14. 14.16 × 16 =
  15. 15.71 + 17 =
  16. 16.15% of 490 =
  17. 17.190 ÷ 5 =
  18. 18.19 × 16 =
  19. 19.₹59.50 − ₹25.60 =
  20. 20.1% of 770 =
  21. 21.1 + 2 + 9 + 1 + 6 =
  22. 22.820 ÷ 5 =
  23. 23.80 + 67 =
  24. 24.88 + 89 + 62 + 61 =
  25. 25.61² =
  26. 26.2000 ÷ 50 =
  27. 27.50 × 5 =
  28. 28.250 ÷ 50 =
  29. 29.491 − 39 =
  30. 30.55 × 8 =
  31. 31.11 × 19 =
  32. 32.1150 ÷ 50 =
  33. 33.Check with nines: 55 × 32 = 1758. Correct or wrong? (a) wrong (b) correct
  34. 34.₹13.95 + ₹23.55 =
  35. 35.19² =
  36. 36.75 × 5 =
  37. 37.500 ÷ 50 =
  38. 38.381 + 69 =
  39. 39.202 + 27 =
  40. 40.15% of 160 =

Answer key

  1. 171
  2. 17
  3. 173
  4. 35.5
  5. 464
  6. wrong
  7. 180
  8. 17
  9. 457
  10. 14
  11. correct
  12. 261
  13. 1800
  14. 256
  15. 88
  16. 73.5
  17. 38
  18. 304
  19. 33.9
  20. 7.7
  21. 19
  22. 164
  23. 147
  24. 300
  25. 3721
  26. 40
  27. 250
  28. 5
  29. 452
  30. 440
  31. 209
  32. 23
  33. wrong
  34. 37.5
  35. 361
  36. 375
  37. 10
  38. 450
  39. 229
  40. 24

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