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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 600 · 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. 1.95 × 5 =
  2. 2.50 × 8 =
  3. 3.620 ÷ 5 =
  4. 4.71² =
  5. 5.10% of 410 =
  6. 6.250 ÷ 25 =
  7. 7.58 + 44 + 15 + 71 =
  8. 8.54 × 15 =
  9. 9.69 + 76 + 50 + 34 =
  10. 10.598 − 87 =
  11. 11.45 × 15 =
  12. 12.₹46.10 − ₹6.20 =
  13. 13.30 × 15 =
  14. 14.115 + 97 =
  15. 15.71² =
  16. 16.44 × 15 =
  17. 17.2 + 2 + 2 + 8 =
  18. 18.Best estimate of 203 × 7? (a) 2800 (b) 14000 (c) 140 (d) 1400
  19. 19.91² =
  20. 20.140 × 4 =
  21. 21.11 × 14 =
  22. 22.Check with nines: 480 + 259 = 739. Correct or wrong? (a) wrong (b) correct
  23. 23.18 × 17 =
  24. 24.5% of 860 =
  25. 25.14 × 11 =
  26. 26.950 ÷ 25 =
  27. 27.25% of 540 =
  28. 28.15 × 15 =
  29. 29.194 − 99 =
  30. 30.Best estimate of 898 × 5? (a) 450 (b) 45000 (c) 4500 (d) 9000
  31. 31.79² =
  32. 32.450 ÷ 50 =
  33. 33.30 × 50 =
  34. 34.19 × 15 =
  35. 35.5% of 800 =
  36. 36.Best estimate of 78 × 51? (a) 400 (b) 4000 (c) 40000 (d) 8000
  37. 37.16 × 15 =
  38. 38.Best estimate of 302 × 3? (a) 9000 (b) 90 (c) 900 (d) 1800
  39. 39.6 + 2 + 4 + 7 =
  40. 40.28 + 52 + 19 + 54 =

Answer key

  1. 475
  2. 400
  3. 124
  4. 5041
  5. 41
  6. 10
  7. 188
  8. 810
  9. 229
  10. 511
  11. 675
  12. 39.9
  13. 450
  14. 212
  15. 5041
  16. 660
  17. 14
  18. 1400
  19. 8281
  20. 560
  21. 154
  22. correct
  23. 306
  24. 43
  25. 154
  26. 38
  27. 135
  28. 225
  29. 95
  30. 4500
  31. 6241
  32. 9
  33. 1500
  34. 285
  35. 40
  36. 4000
  37. 240
  38. 900
  39. 19
  40. 153

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