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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 676 · 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. 1.41² =
  2. 2.32 × 15 =
  3. 3.242 + 68 =
  4. 4.20% of 390 =
  5. 5.₹73.05 + ₹13.10 =
  6. 6.13 × 5 =
  7. 7.6 + 3 + 6 + 4 + 3 =
  8. 8.₹14.40 + ₹11.05 =
  9. 9.13 × 15 =
  10. 10.₹41.15 − ₹6.25 =
  11. 11.2 + 4 + 4 + 6 =
  12. 12.1 + 9 + 1 + 2 + 2 =
  13. 13.15 × 5 =
  14. 14.25% of 170 =
  15. 15.2 + 9 + 8 + 3 + 2 =
  16. 16.388 − 66 =
  17. 17.388 − 28 =
  18. 18.25% of 160 =
  19. 19.25% of 290 =
  20. 20.9 × 15 =
  21. 21.44 × 8 =
  22. 22.₹49.25 − ₹43.70 =
  23. 23.368 + 69 =
  24. 24.13 × 13 =
  25. 25.88 + 20 + 30 + 27 =
  26. 26.123 + 38 =
  27. 27.Check with nines: 461 + 693 = 1154. Correct or wrong? (a) correct (b) wrong
  28. 28.Check with nines: 54 × 16 = 870. Correct or wrong? (a) wrong (b) correct
  29. 29.117 − 59 =
  30. 30.1000 ÷ 50 =
  31. 31.40 × 15 =
  32. 32.5% of 840 =
  33. 33.81 + 79 =
  34. 34.41² =
  35. 35.92 × 4 =
  36. 36.48 × 4 =
  37. 37.11 + 61 + 16 + 11 =
  38. 38.11 + 72 + 33 + 42 =
  39. 39.31 × 50 =
  40. 40.18 × 11 =

Answer key

  1. 1681
  2. 480
  3. 310
  4. 78
  5. 86.15
  6. 65
  7. 22
  8. 25.45
  9. 195
  10. 34.9
  11. 16
  12. 15
  13. 75
  14. 42.5
  15. 24
  16. 322
  17. 360
  18. 40
  19. 72.5
  20. 135
  21. 352
  22. 5.55
  23. 437
  24. 169
  25. 165
  26. 161
  27. correct
  28. wrong
  29. 58
  30. 20
  31. 600
  32. 42
  33. 160
  34. 1681
  35. 368
  36. 192
  37. 99
  38. 158
  39. 1550
  40. 198

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