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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 351 · 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. 1.1% of 110 =
  2. 2.25% of 890 =
  3. 3.13 × 12 =
  4. 4.67 + 70 + 17 + 66 =
  5. 5.13 × 15 =
  6. 6.1 + 1 + 7 + 9 =
  7. 7.95 + 58 =
  8. 8.58 × 15 =
  9. 9.₹88.30 − ₹10.45 =
  10. 10.41 + 14 + 14 + 53 =
  11. 11.90 × 5 =
  12. 12.17 × 18 =
  13. 13.365 ÷ 5 =
  14. 14.91² =
  15. 15.20% of 220 =
  16. 16.89 × 5 =
  17. 17.68 + 11 + 42 + 40 =
  18. 18.120 − 16 =
  19. 19.251 − 48 =
  20. 20.5 × 15 =
  21. 21.35 × 50 =
  22. 22.1% of 730 =
  23. 23.Best estimate of 498 × 7? (a) 7000 (b) 3500 (c) 350 (d) 35000
  24. 24.14 × 15 =
  25. 25.52 × 50 =
  26. 26.Check with nines: 44 × 52 = 2288. Correct or wrong? (a) correct (b) wrong
  27. 27.210 + 97 =
  28. 28.Best estimate of 19 × 19? (a) 4000 (b) 40 (c) 800 (d) 400
  29. 29.284 + 77 =
  30. 30.28 × 15 =
  31. 31.5% of 600 =
  32. 32.150 ÷ 5 =
  33. 33.Best estimate of 69 × 41? (a) 2800 (b) 28000 (c) 5600 (d) 280
  34. 34.74 × 8 =
  35. 35.20 × 4 =
  36. 36.Best estimate of 42 × 62? (a) 2400 (b) 4800 (c) 240 (d) 24000
  37. 37.17 × 19 =
  38. 38.11 × 19 =
  39. 39.₹25.05 − ₹22.20 =
  40. 40.13 × 5 =

Answer key

  1. 1.1
  2. 222.5
  3. 156
  4. 220
  5. 195
  6. 18
  7. 153
  8. 870
  9. 77.85
  10. 122
  11. 450
  12. 306
  13. 73
  14. 8281
  15. 44
  16. 445
  17. 161
  18. 104
  19. 203
  20. 75
  21. 1750
  22. 7.3
  23. 3500
  24. 210
  25. 2600
  26. correct
  27. 307
  28. 400
  29. 361
  30. 420
  31. 30
  32. 30
  33. 2800
  34. 592
  35. 80
  36. 2400
  37. 323
  38. 209
  39. 2.85
  40. 65

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