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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 606 · 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. 1.10 × 15 =
  2. 2.8 + 3 + 2 + 2 =
  3. 3.21² =
  4. 4.₹20.35 + ₹8.10 =
  5. 5.12 × 8 =
  6. 6.24 × 50 =
  7. 7.470 ÷ 5 =
  8. 8.10 × 15 =
  9. 9.41 × 4 =
  10. 10.15% of 330 =
  11. 11.236 + 39 =
  12. 12.71² =
  13. 13.49² =
  14. 14.15 × 18 =
  15. 15.5% of 280 =
  16. 16.42 × 5 =
  17. 17.390 + 98 =
  18. 18.39 × 8 =
  19. 19.Check with nines: 264 + 954 = 1210. Correct or wrong? (a) correct (b) wrong
  20. 20.1% of 150 =
  21. 21.31² =
  22. 22.91² =
  23. 23.28 × 15 =
  24. 24.81 + 79 + 83 + 12 =
  25. 25.Best estimate of 197 × 4? (a) 80 (b) 1600 (c) 8000 (d) 800
  26. 26.12 × 19 =
  27. 27.1200 ÷ 50 =
  28. 28.15% of 360 =
  29. 29.116 + 27 =
  30. 30.1 + 5 + 1 + 3 + 9 =
  31. 31.₹27.30 − ₹18.65 =
  32. 32.Check with nines: 129 + 763 = 892. Correct or wrong? (a) correct (b) wrong
  33. 33.29 × 4 =
  34. 34.Check with nines: 189 + 213 = 401. Correct or wrong? (a) correct (b) wrong
  35. 35.88 × 5 =
  36. 36.₹24.85 − ₹24.50 =
  37. 37.229 + 77 =
  38. 38.₹66.65 + ₹38.55 =
  39. 39.725 ÷ 25 =
  40. 40.330 − 16 =

Answer key

  1. 150
  2. 15
  3. 441
  4. 28.45
  5. 96
  6. 1200
  7. 94
  8. 150
  9. 164
  10. 49.5
  11. 275
  12. 5041
  13. 2401
  14. 270
  15. 14
  16. 210
  17. 488
  18. 312
  19. wrong
  20. 1.5
  21. 961
  22. 8281
  23. 420
  24. 255
  25. 800
  26. 228
  27. 24
  28. 54
  29. 143
  30. 19
  31. 8.65
  32. correct
  33. 116
  34. wrong
  35. 440
  36. 0.35
  37. 306
  38. 105.2
  39. 29
  40. 314

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