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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 323 · 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. 1.50% of 340 =
  2. 2.224 − 27 =
  3. 3.59² =
  4. 4.₹9.25 + ₹49.60 =
  5. 5.26 + 87 + 81 + 51 =
  6. 6.1 + 7 + 3 + 2 =
  7. 7.11 × 14 =
  8. 8.27 × 8 =
  9. 9.24 + 46 + 83 + 28 =
  10. 10.52 × 5 =
  11. 11.64 + 79 =
  12. 12.97 × 5 =
  13. 13.10% of 370 =
  14. 14.71² =
  15. 15.₹77.95 − ₹19.05 =
  16. 16.9 × 15 =
  17. 17.₹99.10 + ₹40.30 =
  18. 18.Best estimate of 18 × 31? (a) 600 (b) 6000 (c) 60 (d) 1200
  19. 19.132 × 4 =
  20. 20.407 + 27 =
  21. 21.8 + 7 + 3 + 1 =
  22. 22.84 × 4 =
  23. 23.20 × 5 =
  24. 24.543 − 96 =
  25. 25.13 × 15 =
  26. 26.₹20.55 − ₹9.20 =
  27. 27.14 × 12 =
  28. 28.175 + 28 =
  29. 29.₹76.25 − ₹29.80 =
  30. 30.399 − 57 =
  31. 31.48 + 21 + 12 + 84 =
  32. 32.5 + 2 + 9 + 5 + 7 =
  33. 33.31² =
  34. 34.9 × 15 =
  35. 35.3 + 7 + 2 + 2 + 5 =
  36. 36.1% of 190 =
  37. 37.155 − 16 =
  38. 38.21² =
  39. 39.Check with nines: 719 + 567 = 1293. Correct or wrong? (a) wrong (b) correct
  40. 40.₹84.90 − ₹25.75 =

Answer key

  1. 170
  2. 197
  3. 3481
  4. 58.85
  5. 245
  6. 13
  7. 154
  8. 216
  9. 181
  10. 260
  11. 143
  12. 485
  13. 37
  14. 5041
  15. 58.9
  16. 135
  17. 139.4
  18. 600
  19. 528
  20. 434
  21. 19
  22. 336
  23. 100
  24. 447
  25. 195
  26. 11.35
  27. 168
  28. 203
  29. 46.45
  30. 342
  31. 165
  32. 28
  33. 961
  34. 135
  35. 19
  36. 1.9
  37. 139
  38. 441
  39. wrong
  40. 59.15

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