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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 478 · 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. 1.70 × 50 =
  2. 2.38 × 50 =
  3. 3.Best estimate of 31 × 19? (a) 60 (b) 1200 (c) 600 (d) 6000
  4. 4.Best estimate of 597 × 7? (a) 8400 (b) 420 (c) 4200 (d) 42000
  5. 5.17 × 18 =
  6. 6.163 + 68 =
  7. 7.Best estimate of 197 × 6? (a) 1200 (b) 2400 (c) 120 (d) 12000
  8. 8.Check with nines: 43 × 37 = 1591. Correct or wrong? (a) wrong (b) correct
  9. 9.13 × 8 =
  10. 10.129 + 38 =
  11. 11.365 ÷ 5 =
  12. 12.23 + 38 + 32 + 31 =
  13. 13.180 + 29 =
  14. 14.15% of 430 =
  15. 15.₹41.70 − ₹16.05 =
  16. 16.131 − 69 =
  17. 17.78 + 31 + 26 + 23 =
  18. 18.71 × 5 =
  19. 19.35 + 79 + 29 + 11 =
  20. 20.16 × 12 =
  21. 21.₹67.70 − ₹16.45 =
  22. 22.18 × 12 =
  23. 23.3 + 7 + 9 + 5 + 1 =
  24. 24.56 + 58 + 74 + 54 =
  25. 25.1 + 9 + 3 + 7 + 3 =
  26. 26.1300 ÷ 50 =
  27. 27.1425 ÷ 25 =
  28. 28.18 × 5 =
  29. 29.₹56.25 + ₹19.10 =
  30. 30.12 × 16 =
  31. 31.50 × 15 =
  32. 32.70 × 5 =
  33. 33.5 × 15 =
  34. 34.75 ÷ 25 =
  35. 35.399 + 69 =
  36. 36.Best estimate of 68 × 69? (a) 9800 (b) 4900 (c) 490 (d) 49000
  37. 37.12 × 15 =
  38. 38.359 + 17 =
  39. 39.50% of 770 =
  40. 40.₹93.10 + ₹32.15 =

Answer key

  1. 3500
  2. 1900
  3. 600
  4. 4200
  5. 306
  6. 231
  7. 1200
  8. correct
  9. 104
  10. 167
  11. 73
  12. 124
  13. 209
  14. 64.5
  15. 25.65
  16. 62
  17. 158
  18. 355
  19. 154
  20. 192
  21. 51.25
  22. 216
  23. 25
  24. 242
  25. 23
  26. 26
  27. 57
  28. 90
  29. 75.35
  30. 192
  31. 750
  32. 350
  33. 75
  34. 3
  35. 468
  36. 4900
  37. 180
  38. 376
  39. 385
  40. 125.25

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