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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 663 · 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. 1.8 + 4 + 6 + 9 =
  2. 2.Best estimate of 92 × 18? (a) 18000 (b) 3600 (c) 180 (d) 1800
  3. 3.60 × 5 =
  4. 4.367 − 36 =
  5. 5.4 + 5 + 7 + 1 + 6 =
  6. 6.54 × 50 =
  7. 7.₹49.60 − ₹45.35 =
  8. 8.41 × 15 =
  9. 9.990 ÷ 5 =
  10. 10.598 − 96 =
  11. 11.6 × 15 =
  12. 12.3 + 7 + 3 + 6 =
  13. 13.26 × 15 =
  14. 14.318 + 68 =
  15. 15.Check with nines: 20 × 62 = 1238. Correct or wrong? (a) correct (b) wrong
  16. 16.16 × 15 =
  17. 17.65 + 20 + 61 + 74 =
  18. 18.580 ÷ 5 =
  19. 19.162 + 67 =
  20. 20.Best estimate of 598 × 5? (a) 30000 (b) 300 (c) 6000 (d) 3000
  21. 21.42 × 8 =
  22. 22.475 ÷ 5 =
  23. 23.80 + 55 + 21 + 32 =
  24. 24.56 + 51 + 51 + 25 =
  25. 25.10% of 650 =
  26. 26.₹10.65 + ₹36.30 =
  27. 27.25% of 180 =
  28. 28.220 − 77 =
  29. 29.431 − 99 =
  30. 30.₹44.30 − ₹4.15 =
  31. 31.38 + 65 + 80 + 72 =
  32. 32.559 − 57 =
  33. 33.5 + 3 + 2 + 2 + 8 =
  34. 34.₹36.75 − ₹32.25 =
  35. 35.2 + 1 + 9 + 1 + 9 =
  36. 36.Best estimate of 81 × 38? (a) 320 (b) 3200 (c) 6400 (d) 32000
  37. 37.33 × 4 =
  38. 38.16 × 19 =
  39. 39.513 − 16 =
  40. 40.20 + 23 + 42 + 40 =

Answer key

  1. 27
  2. 1800
  3. 300
  4. 331
  5. 23
  6. 2700
  7. 4.25
  8. 615
  9. 198
  10. 502
  11. 90
  12. 19
  13. 390
  14. 386
  15. wrong
  16. 240
  17. 220
  18. 116
  19. 229
  20. 3000
  21. 336
  22. 95
  23. 188
  24. 183
  25. 65
  26. 46.95
  27. 45
  28. 143
  29. 332
  30. 40.15
  31. 255
  32. 502
  33. 20
  34. 4.5
  35. 22
  36. 3200
  37. 132
  38. 304
  39. 497
  40. 125

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