← Mixed speed challenge lesson New set →

Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 148 · 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. 1.71² =
  2. 2.80 + 37 =
  3. 3.75 × 50 =
  4. 4.16 × 18 =
  5. 5.13 × 15 =
  6. 6.10% of 440 =
  7. 7.29² =
  8. 8.Best estimate of 699 × 4? (a) 280 (b) 5600 (c) 28000 (d) 2800
  9. 9.84 + 74 + 62 + 35 =
  10. 10.36 × 15 =
  11. 11.35 × 15 =
  12. 12.14 × 4 =
  13. 13.69² =
  14. 14.350 ÷ 50 =
  15. 15.7 + 3 + 8 + 9 =
  16. 16.527 − 27 =
  17. 17.14 × 17 =
  18. 18.129 × 4 =
  19. 19.28 × 5 =
  20. 20.29 × 50 =
  21. 21.316 − 97 =
  22. 22.28 × 5 =
  23. 23.68 × 5 =
  24. 24.₹59.25 − ₹43.75 =
  25. 25.12 × 8 =
  26. 26.21² =
  27. 27.325 ÷ 25 =
  28. 28.₹23.90 + ₹37.80 =
  29. 29.89² =
  30. 30.50% of 600 =
  31. 31.Check with nines: 72 × 31 = 2232. Correct or wrong? (a) wrong (b) correct
  32. 32.54 × 4 =
  33. 33.1050 ÷ 50 =
  34. 34.158 + 79 =
  35. 35.74 × 50 =
  36. 36.1 + 2 + 1 + 9 =
  37. 37.390 − 56 =
  38. 38.19 × 18 =
  39. 39.53 + 52 + 12 + 73 =
  40. 40.16 × 4 =

Answer key

  1. 5041
  2. 117
  3. 3750
  4. 288
  5. 195
  6. 44
  7. 841
  8. 2800
  9. 255
  10. 540
  11. 525
  12. 56
  13. 4761
  14. 7
  15. 27
  16. 500
  17. 238
  18. 516
  19. 140
  20. 1450
  21. 219
  22. 140
  23. 340
  24. 15.5
  25. 96
  26. 441
  27. 13
  28. 61.7
  29. 7921
  30. 300
  31. correct
  32. 216
  33. 21
  34. 237
  35. 3700
  36. 13
  37. 334
  38. 342
  39. 190
  40. 64

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