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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 473 · 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.₹72.75 + ₹3.35 =
  2. 2.Best estimate of 897 × 4? (a) 7200 (b) 3600 (c) 360 (d) 36000
  3. 3.27 × 4 =
  4. 4.₹89.70 + ₹5.60 =
  5. 5.59² =
  6. 6.4 + 2 + 4 + 8 + 2 =
  7. 7.93 + 69 =
  8. 8.21² =
  9. 9.450 ÷ 50 =
  10. 10.119 − 89 =
  11. 11.6 + 2 + 4 + 6 + 2 =
  12. 12.51² =
  13. 13.309 − 66 =
  14. 14.169 − 96 =
  15. 15.223 − 46 =
  16. 16.160 × 4 =
  17. 17.32 × 4 =
  18. 18.448 + 17 =
  19. 19.2 + 7 + 6 + 3 =
  20. 20.350 ÷ 50 =
  21. 21.40 + 67 =
  22. 22.19² =
  23. 23.Check with nines: 35 × 85 = 2975. Correct or wrong? (a) correct (b) wrong
  24. 24.568 − 77 =
  25. 25.149 + 87 =
  26. 26.10% of 770 =
  27. 27.Best estimate of 197 × 3? (a) 60 (b) 6000 (c) 600 (d) 1200
  28. 28.52 × 4 =
  29. 29.133 × 4 =
  30. 30.75 × 5 =
  31. 31.41 × 5 =
  32. 32.₹15.60 + ₹40.90 =
  33. 33.Check with nines: 353 + 663 = 1022. Correct or wrong? (a) wrong (b) correct
  34. 34.25 × 8 =
  35. 35.447 − 87 =
  36. 36.19² =
  37. 37.284 − 26 =
  38. 38.61² =
  39. 39.30 + 48 =
  40. 40.53 × 15 =

Answer key

  1. 76.1
  2. 3600
  3. 108
  4. 95.3
  5. 3481
  6. 20
  7. 162
  8. 441
  9. 9
  10. 30
  11. 20
  12. 2601
  13. 243
  14. 73
  15. 177
  16. 640
  17. 128
  18. 465
  19. 18
  20. 7
  21. 107
  22. 361
  23. correct
  24. 491
  25. 236
  26. 77
  27. 600
  28. 208
  29. 532
  30. 375
  31. 205
  32. 56.5
  33. wrong
  34. 200
  35. 360
  36. 361
  37. 258
  38. 3721
  39. 78
  40. 795

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