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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 390 · 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% of 110 =
  2. 2.2 + 7 + 5 + 8 =
  3. 3.5% of 340 =
  4. 4.19 × 12 =
  5. 5.Best estimate of 103 × 7? (a) 70 (b) 7000 (c) 1400 (d) 700
  6. 6.20% of 630 =
  7. 7.7 + 5 + 7 + 8 + 2 =
  8. 8.₹97.85 + ₹14.10 =
  9. 9.59 × 15 =
  10. 10.20 × 15 =
  11. 11.5 × 15 =
  12. 12.39² =
  13. 13.1 + 2 + 8 + 4 =
  14. 14.14 × 11 =
  15. 15.Check with nines: 24 × 68 = 1632. Correct or wrong? (a) correct (b) wrong
  16. 16.189 − 17 =
  17. 17.27 + 11 + 23 + 76 =
  18. 18.48 × 4 =
  19. 19.25% of 140 =
  20. 20.13 + 34 + 13 + 33 =
  21. 21.₹21.05 + ₹10.75 =
  22. 22.81² =
  23. 23.Check with nines: 865 + 140 = 1005. Correct or wrong? (a) correct (b) wrong
  24. 24.37 + 77 + 82 + 86 =
  25. 25.₹38.50 + ₹13.50 =
  26. 26.71 × 50 =
  27. 27.5% of 260 =
  28. 28.467 + 19 =
  29. 29.₹86.20 − ₹17.15 =
  30. 30.20% of 20 =
  31. 31.127 × 4 =
  32. 32.31² =
  33. 33.200 ÷ 25 =
  34. 34.20% of 60 =
  35. 35.13 × 14 =
  36. 36.71 + 57 + 50 + 65 =
  37. 37.163 + 19 =
  38. 38.1% of 420 =
  39. 39.79² =
  40. 40.1% of 560 =

Answer key

  1. 11
  2. 22
  3. 17
  4. 228
  5. 700
  6. 126
  7. 29
  8. 111.95
  9. 885
  10. 300
  11. 75
  12. 1521
  13. 15
  14. 154
  15. correct
  16. 172
  17. 137
  18. 192
  19. 35
  20. 93
  21. 31.8
  22. 6561
  23. correct
  24. 282
  25. 52
  26. 3550
  27. 13
  28. 486
  29. 69.05
  30. 4
  31. 508
  32. 961
  33. 8
  34. 12
  35. 182
  36. 243
  37. 182
  38. 4.2
  39. 6241
  40. 5.6

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