← Mixed speed challenge lesson New set →

Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 568 · 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. 1.373 − 76 =
  2. 2.1% of 100 =
  3. 3.61 × 15 =
  4. 4.187 + 67 =
  5. 5.11 × 12 =
  6. 6.65 × 5 =
  7. 7.15 × 11 =
  8. 8.45 × 50 =
  9. 9.5% of 900 =
  10. 10.61 × 15 =
  11. 11.₹87.55 − ₹44.25 =
  12. 12.₹65.30 + ₹26.80 =
  13. 13.25% of 510 =
  14. 14.587 − 27 =
  15. 15.1 + 9 + 2 + 6 =
  16. 16.56 + 71 + 12 + 36 =
  17. 17.63 + 14 + 65 + 38 =
  18. 18.4 + 6 + 5 + 2 + 6 =
  19. 19.12 × 11 =
  20. 20.150 ÷ 5 =
  21. 21.₹70.50 − ₹43.15 =
  22. 22.61² =
  23. 23.5% of 520 =
  24. 24.Best estimate of 29 × 79? (a) 240 (b) 24000 (c) 2400 (d) 4800
  25. 25.Best estimate of 897 × 7? (a) 630 (b) 6300 (c) 63000 (d) 12600
  26. 26.20 × 50 =
  27. 27.76 × 5 =
  28. 28.16 × 13 =
  29. 29.50% of 20 =
  30. 30.Check with nines: 166 + 185 = 358. Correct or wrong? (a) wrong (b) correct
  31. 31.16 × 16 =
  32. 32.191 − 57 =
  33. 33.18 × 5 =
  34. 34.1% of 310 =
  35. 35.₹99.80 + ₹8.40 =
  36. 36.78 × 4 =
  37. 37.14 + 25 + 36 + 19 =
  38. 38.12 × 15 =
  39. 39.19² =
  40. 40.Best estimate of 48 × 22? (a) 100 (b) 2000 (c) 10000 (d) 1000

Answer key

  1. 297
  2. 1
  3. 915
  4. 254
  5. 132
  6. 325
  7. 165
  8. 2250
  9. 45
  10. 915
  11. 43.3
  12. 92.1
  13. 127.5
  14. 560
  15. 18
  16. 175
  17. 180
  18. 23
  19. 132
  20. 30
  21. 27.35
  22. 3721
  23. 26
  24. 2400
  25. 6300
  26. 1000
  27. 380
  28. 208
  29. 10
  30. wrong
  31. 256
  32. 134
  33. 90
  34. 3.1
  35. 108.2
  36. 312
  37. 94
  38. 180
  39. 361
  40. 1000

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