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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 279 · 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.₹21.25 − ₹16.25 =
  2. 2.61 × 8 =
  3. 3.₹65.65 − ₹39.65 =
  4. 4.19 × 12 =
  5. 5.48 × 8 =
  6. 6.13 × 15 =
  7. 7.94 × 5 =
  8. 8.240 + 39 =
  9. 9.5% of 570 =
  10. 10.Best estimate of 403 × 5? (a) 2000 (b) 20000 (c) 4000 (d) 200
  11. 11.81 + 68 =
  12. 12.₹74.75 + ₹4.35 =
  13. 13.62 × 8 =
  14. 14.55 × 8 =
  15. 15.224 − 19 =
  16. 16.113 − 66 =
  17. 17.236 − 38 =
  18. 18.44 × 5 =
  19. 19.87 + 25 + 16 + 15 =
  20. 20.Check with nines: 71 × 13 = 923. Correct or wrong? (a) wrong (b) correct
  21. 21.50% of 70 =
  22. 22.89 × 50 =
  23. 23.417 + 47 =
  24. 24.460 ÷ 5 =
  25. 25.58 + 77 + 78 + 70 =
  26. 26.₹68.40 + ₹14.20 =
  27. 27.9 + 8 + 1 + 2 =
  28. 28.1% of 710 =
  29. 29.Check with nines: 40 × 13 = 512. Correct or wrong? (a) correct (b) wrong
  30. 30.₹91.75 + ₹8.90 =
  31. 31.5 × 15 =
  32. 32.₹94.30 + ₹17.30 =
  33. 33.59 × 15 =
  34. 34.1 + 4 + 9 + 4 =
  35. 35.54 × 15 =
  36. 36.800 ÷ 50 =
  37. 37.48 × 15 =
  38. 38.5 + 7 + 3 + 5 =
  39. 39.319 − 19 =
  40. 40.295 + 87 =

Answer key

  1. 5
  2. 488
  3. 26
  4. 228
  5. 384
  6. 195
  7. 470
  8. 279
  9. 28.5
  10. 2000
  11. 149
  12. 79.1
  13. 496
  14. 440
  15. 205
  16. 47
  17. 198
  18. 220
  19. 143
  20. correct
  21. 35
  22. 4450
  23. 464
  24. 92
  25. 283
  26. 82.6
  27. 20
  28. 7.1
  29. wrong
  30. 100.65
  31. 75
  32. 111.6
  33. 885
  34. 18
  35. 810
  36. 16
  37. 720
  38. 20
  39. 300
  40. 382

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