← Mixed speed challenge lesson New set →

Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 554 · 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.₹9.60 + ₹29.85 =
  2. 2.21 × 15 =
  3. 3.11 × 11 =
  4. 4.6 + 4 + 2 + 2 + 8 =
  5. 5.4 + 2 + 8 + 2 =
  6. 6.578 − 47 =
  7. 7.133 − 49 =
  8. 8.Check with nines: 950 + 626 = 1570. Correct or wrong? (a) wrong (b) correct
  9. 9.458 − 39 =
  10. 10.100 ÷ 5 =
  11. 11.51² =
  12. 12.52 × 50 =
  13. 13.141 + 27 =
  14. 14.Best estimate of 28 × 59? (a) 180 (b) 18000 (c) 1800 (d) 3600
  15. 15.256 + 59 =
  16. 16.73 + 56 + 49 + 80 =
  17. 17.28 × 15 =
  18. 18.111 + 77 =
  19. 19.310 ÷ 5 =
  20. 20.20% of 820 =
  21. 21.201 + 59 =
  22. 22.50 + 15 + 46 + 78 =
  23. 23.₹31.05 + ₹42.10 =
  24. 24.211 + 87 =
  25. 25.14 × 14 =
  26. 26.₹73.15 − ₹21.60 =
  27. 27.25% of 270 =
  28. 28.149 + 37 =
  29. 29.4 × 15 =
  30. 30.Best estimate of 101 × 6? (a) 1200 (b) 6000 (c) 60 (d) 600
  31. 31.143 × 4 =
  32. 32.75 × 5 =
  33. 33.17 × 17 =
  34. 34.70 + 60 + 63 + 73 =
  35. 35.₹75.90 − ₹45.50 =
  36. 36.Check with nines: 796 + 297 = 1095. Correct or wrong? (a) wrong (b) correct
  37. 37.186 − 87 =
  38. 38.3 + 7 + 5 + 7 =
  39. 39.5% of 130 =
  40. 40.50 + 18 + 63 + 60 =

Answer key

  1. 39.45
  2. 315
  3. 121
  4. 22
  5. 16
  6. 531
  7. 84
  8. wrong
  9. 419
  10. 20
  11. 2601
  12. 2600
  13. 168
  14. 1800
  15. 315
  16. 258
  17. 420
  18. 188
  19. 62
  20. 164
  21. 260
  22. 189
  23. 73.15
  24. 298
  25. 196
  26. 51.55
  27. 67.5
  28. 186
  29. 60
  30. 600
  31. 572
  32. 375
  33. 289
  34. 266
  35. 30.4
  36. wrong
  37. 99
  38. 22
  39. 6.5
  40. 191

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