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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 587 · 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. 1.15 × 16 =
  2. 2.10% of 220 =
  3. 3.59 × 50 =
  4. 4.87 + 28 =
  5. 5.₹39.25 − ₹33.10 =
  6. 6.5% of 150 =
  7. 7.₹39.50 − ₹10.85 =
  8. 8.14 × 19 =
  9. 9.₹61.15 + ₹44.05 =
  10. 10.34 × 15 =
  11. 11.26 + 78 =
  12. 12.Check with nines: 81 × 18 = 1458. Correct or wrong? (a) wrong (b) correct
  13. 13.24 × 8 =
  14. 14.59² =
  15. 15.10 × 15 =
  16. 16.13 × 5 =
  17. 17.₹9.75 + ₹3.05 =
  18. 18.15% of 210 =
  19. 19.25% of 760 =
  20. 20.134 − 77 =
  21. 21.79² =
  22. 22.88 × 50 =
  23. 23.Check with nines: 946 + 386 = 1338. Correct or wrong? (a) correct (b) wrong
  24. 24.21 × 4 =
  25. 25.3 + 3 + 2 + 1 + 7 =
  26. 26.11 × 17 =
  27. 27.680 ÷ 5 =
  28. 28.54 × 15 =
  29. 29.247 + 29 =
  30. 30.11 × 19 =
  31. 31.87 × 50 =
  32. 32.Best estimate of 41 × 38? (a) 1600 (b) 160 (c) 3200 (d) 16000
  33. 33.700 ÷ 25 =
  34. 34.Check with nines: 614 + 256 = 871. Correct or wrong? (a) wrong (b) correct
  35. 35.20% of 710 =
  36. 36.31² =
  37. 37.25 × 5 =
  38. 38.5% of 110 =
  39. 39.41² =
  40. 40.78 + 69 + 76 + 56 =

Answer key

  1. 240
  2. 22
  3. 2950
  4. 115
  5. 6.15
  6. 7.5
  7. 28.65
  8. 266
  9. 105.2
  10. 510
  11. 104
  12. correct
  13. 192
  14. 3481
  15. 150
  16. 65
  17. 12.8
  18. 31.5
  19. 190
  20. 57
  21. 6241
  22. 4400
  23. wrong
  24. 84
  25. 16
  26. 187
  27. 136
  28. 810
  29. 276
  30. 209
  31. 4350
  32. 1600
  33. 28
  34. wrong
  35. 142
  36. 961
  37. 125
  38. 5.5
  39. 1681
  40. 279

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