← Mixed speed challenge lesson New set →

Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 966 · 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. 1.16 × 16 =
  2. 2.61 + 32 + 71 + 19 =
  3. 3.216 + 68 =
  4. 4.Check with nines: 45 × 58 = 2607. Correct or wrong? (a) wrong (b) correct
  5. 5.19 + 16 + 17 + 86 =
  6. 6.90 ÷ 5 =
  7. 7.₹44.20 − ₹27.10 =
  8. 8.61² =
  9. 9.48 × 8 =
  10. 10.14 × 11 =
  11. 11.216 + 38 =
  12. 12.454 − 67 =
  13. 13.₹51.25 + ₹31.65 =
  14. 14.10% of 220 =
  15. 15.₹87.55 − ₹15.75 =
  16. 16.82 × 4 =
  17. 17.Best estimate of 68 × 78? (a) 560 (b) 5600 (c) 11200 (d) 56000
  18. 18.3 + 6 + 4 + 3 =
  19. 19.51² =
  20. 20.49² =
  21. 21.483 + 38 =
  22. 22.18 × 4 =
  23. 23.281 + 87 =
  24. 24.12 × 13 =
  25. 25.164 − 17 =
  26. 26.₹25.95 + ₹32.85 =
  27. 27.163 − 27 =
  28. 28.20% of 770 =
  29. 29.650 ÷ 50 =
  30. 30.68 + 80 + 30 + 72 =
  31. 31.82 + 38 =
  32. 32.51² =
  33. 33.2 + 1 + 2 + 5 + 5 =
  34. 34.Check with nines: 762 + 725 = 1488. Correct or wrong? (a) correct (b) wrong
  35. 35.₹45.95 + ₹6.80 =
  36. 36.89² =
  37. 37.91² =
  38. 38.1 + 5 + 2 + 5 =
  39. 39.45 + 63 + 22 + 64 =
  40. 40.Check with nines: 666 + 901 = 1574. Correct or wrong? (a) wrong (b) correct

Answer key

  1. 256
  2. 183
  3. 284
  4. wrong
  5. 138
  6. 18
  7. 17.1
  8. 3721
  9. 384
  10. 154
  11. 254
  12. 387
  13. 82.9
  14. 22
  15. 71.8
  16. 328
  17. 5600
  18. 16
  19. 2601
  20. 2401
  21. 521
  22. 72
  23. 368
  24. 156
  25. 147
  26. 58.8
  27. 136
  28. 154
  29. 13
  30. 250
  31. 120
  32. 2601
  33. 15
  34. wrong
  35. 52.75
  36. 7921
  37. 8281
  38. 13
  39. 194
  40. wrong

Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths