← Mixed speed challenge lesson New set →

Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 417 · 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. 1.91² =
  2. 2.₹98.50 + ₹33.60 =
  3. 3.91² =
  4. 4.42 × 8 =
  5. 5.24 × 4 =
  6. 6.96 × 50 =
  7. 7.19 × 11 =
  8. 8.101 + 28 =
  9. 9.₹63.85 + ₹33.25 =
  10. 10.50% of 190 =
  11. 11.15 × 11 =
  12. 12.27 × 5 =
  13. 13.15 × 50 =
  14. 14.67 × 50 =
  15. 15.5 + 3 + 3 + 6 + 7 =
  16. 16.295 ÷ 5 =
  17. 17.68 × 8 =
  18. 18.129 − 16 =
  19. 19.489 − 26 =
  20. 20.209 + 29 =
  21. 21.5% of 60 =
  22. 22.51² =
  23. 23.Check with nines: 139 + 308 = 452. Correct or wrong? (a) wrong (b) correct
  24. 24.25 × 15 =
  25. 25.645 ÷ 5 =
  26. 26.362 + 37 =
  27. 27.35 × 4 =
  28. 28.15 × 15 =
  29. 29.16 × 8 =
  30. 30.50% of 470 =
  31. 31.168 − 96 =
  32. 32.9 + 1 + 7 + 8 =
  33. 33.2 + 8 + 8 + 6 =
  34. 34.Best estimate of 21 × 78? (a) 1600 (b) 3200 (c) 16000 (d) 160
  35. 35.46 + 11 + 88 + 78 =
  36. 36.Check with nines: 21 × 46 = 961. Correct or wrong? (a) wrong (b) correct
  37. 37.77 + 58 + 83 + 86 =
  38. 38.270 + 39 =
  39. 39.11 × 15 =
  40. 40.995 ÷ 5 =

Answer key

  1. 8281
  2. 132.1
  3. 8281
  4. 336
  5. 96
  6. 4800
  7. 209
  8. 129
  9. 97.1
  10. 95
  11. 165
  12. 135
  13. 750
  14. 3350
  15. 24
  16. 59
  17. 544
  18. 113
  19. 463
  20. 238
  21. 3
  22. 2601
  23. wrong
  24. 375
  25. 129
  26. 399
  27. 140
  28. 225
  29. 128
  30. 235
  31. 72
  32. 25
  33. 24
  34. 1600
  35. 223
  36. wrong
  37. 304
  38. 309
  39. 165
  40. 199

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