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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 619 · 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. 1.63 × 15 =
  2. 2.₹20.80 − ₹3.40 =
  3. 3.16 × 19 =
  4. 4.19 × 15 =
  5. 5.70 + 59 + 29 + 46 =
  6. 6.Best estimate of 69 × 89? (a) 12600 (b) 630 (c) 6300 (d) 63000
  7. 7.Best estimate of 703 × 8? (a) 560 (b) 56000 (c) 5600 (d) 11200
  8. 8.750 ÷ 50 =
  9. 9.293 + 69 =
  10. 10.₹55.80 − ₹36.65 =
  11. 11.3 + 7 + 3 + 8 =
  12. 12.293 + 47 =
  13. 13.62 + 63 + 12 + 12 =
  14. 14.32 × 8 =
  15. 15.349 − 39 =
  16. 16.36 + 70 + 43 + 66 =
  17. 17.₹64.65 − ₹4.80 =
  18. 18.89 + 37 + 23 + 17 =
  19. 19.1% of 530 =
  20. 20.2 + 8 + 2 + 8 + 6 =
  21. 21.6 + 3 + 3 + 4 + 8 =
  22. 22.20 + 60 + 34 + 38 =
  23. 23.23 × 4 =
  24. 24.61 × 15 =
  25. 25.13 + 50 + 58 + 75 =
  26. 26.45 × 15 =
  27. 27.500 ÷ 50 =
  28. 28.₹89.45 − ₹21.40 =
  29. 29.12 × 14 =
  30. 30.10% of 830 =
  31. 31.Best estimate of 501 × 4? (a) 200 (b) 20000 (c) 4000 (d) 2000
  32. 32.7 + 3 + 4 + 9 =
  33. 33.7 + 8 + 1 + 2 + 1 =
  34. 34.800 ÷ 50 =
  35. 35.Best estimate of 603 × 5? (a) 6000 (b) 3000 (c) 30000 (d) 300
  36. 36.21 × 15 =
  37. 37.49 + 67 =
  38. 38.₹35.25 − ₹3.40 =
  39. 39.24 × 15 =
  40. 40.112 + 39 =

Answer key

  1. 945
  2. 17.4
  3. 304
  4. 285
  5. 204
  6. 6300
  7. 5600
  8. 15
  9. 362
  10. 19.15
  11. 21
  12. 340
  13. 149
  14. 256
  15. 310
  16. 215
  17. 59.85
  18. 166
  19. 5.3
  20. 26
  21. 24
  22. 152
  23. 92
  24. 915
  25. 196
  26. 675
  27. 10
  28. 68.05
  29. 168
  30. 83
  31. 2000
  32. 23
  33. 19
  34. 16
  35. 3000
  36. 315
  37. 116
  38. 31.85
  39. 360
  40. 151

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