← Mixed speed challenge lesson New set →

Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 430 · 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. 1.34 × 4 =
  2. 2.30 × 15 =
  3. 3.20% of 310 =
  4. 4.₹31.30 + ₹8.10 =
  5. 5.31² =
  6. 6.60 × 15 =
  7. 7.93 × 50 =
  8. 8.2 + 7 + 9 + 1 =
  9. 9.Best estimate of 399 × 9? (a) 36000 (b) 360 (c) 7200 (d) 3600
  10. 10.511 − 56 =
  11. 11.42 × 50 =
  12. 12.650 ÷ 50 =
  13. 13.Best estimate of 198 × 7? (a) 2800 (b) 140 (c) 14000 (d) 1400
  14. 14.109 + 57 =
  15. 15.19 × 12 =
  16. 16.200 ÷ 25 =
  17. 17.86 × 50 =
  18. 18.Check with nines: 259 + 375 = 630. Correct or wrong? (a) wrong (b) correct
  19. 19.Check with nines: 383 + 153 = 536. Correct or wrong? (a) wrong (b) correct
  20. 20.18 × 16 =
  21. 21.1 + 9 + 9 + 6 =
  22. 22.76 + 63 + 83 + 33 =
  23. 23.1350 ÷ 50 =
  24. 24.552 − 39 =
  25. 25.44 × 50 =
  26. 26.91² =
  27. 27.42 × 15 =
  28. 28.₹33.30 + ₹13.05 =
  29. 29.164 + 29 =
  30. 30.4 × 15 =
  31. 31.1% of 100 =
  32. 32.5% of 600 =
  33. 33.5% of 330 =
  34. 34.15 × 15 =
  35. 35.196 − 17 =
  36. 36.506 − 89 =
  37. 37.15 × 18 =
  38. 38.9 × 15 =
  39. 39.33 + 81 + 21 + 23 =
  40. 40.47 + 24 + 81 + 50 =

Answer key

  1. 136
  2. 450
  3. 62
  4. 39.4
  5. 961
  6. 900
  7. 4650
  8. 19
  9. 3600
  10. 455
  11. 2100
  12. 13
  13. 1400
  14. 166
  15. 228
  16. 8
  17. 4300
  18. wrong
  19. correct
  20. 288
  21. 25
  22. 255
  23. 27
  24. 513
  25. 2200
  26. 8281
  27. 630
  28. 46.35
  29. 193
  30. 60
  31. 1
  32. 30
  33. 16.5
  34. 225
  35. 179
  36. 417
  37. 270
  38. 135
  39. 158
  40. 202

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