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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 302 · 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. 1.201 + 89 =
  2. 2.70 × 8 =
  3. 3.131 + 78 =
  4. 4.19 × 15 =
  5. 5.12 × 11 =
  6. 6.15% of 730 =
  7. 7.51² =
  8. 8.210 + 97 =
  9. 9.170 − 76 =
  10. 10.3 + 1 + 1 + 9 =
  11. 11.43 × 5 =
  12. 12.368 + 99 =
  13. 13.₹87.80 + ₹32.75 =
  14. 14.Best estimate of 21 × 48? (a) 10000 (b) 100 (c) 2000 (d) 1000
  15. 15.42 + 11 + 88 + 37 =
  16. 16.3 + 1 + 7 + 2 =
  17. 17.Best estimate of 801 × 8? (a) 12800 (b) 640 (c) 64000 (d) 6400
  18. 18.Best estimate of 42 × 92? (a) 36000 (b) 7200 (c) 3600 (d) 360
  19. 19.92 × 50 =
  20. 20.450 − 86 =
  21. 21.₹90.05 + ₹38.80 =
  22. 22.7 + 9 + 3 + 1 + 8 =
  23. 23.372 + 48 =
  24. 24.159 × 4 =
  25. 25.₹66.95 + ₹11.85 =
  26. 26.₹96.90 + ₹3.45 =
  27. 27.69² =
  28. 28.19 × 13 =
  29. 29.200 ÷ 25 =
  30. 30.211 + 18 =
  31. 31.13 × 15 =
  32. 32.16 × 14 =
  33. 33.30 × 5 =
  34. 34.6 × 15 =
  35. 35.₹79.80 + ₹19.65 =
  36. 36.51 + 88 =
  37. 37.124 × 4 =
  38. 38.330 − 58 =
  39. 39.Best estimate of 599 × 6? (a) 360 (b) 7200 (c) 36000 (d) 3600
  40. 40.1% of 730 =

Answer key

  1. 290
  2. 560
  3. 209
  4. 285
  5. 132
  6. 109.5
  7. 2601
  8. 307
  9. 94
  10. 14
  11. 215
  12. 467
  13. 120.55
  14. 1000
  15. 178
  16. 13
  17. 6400
  18. 3600
  19. 4600
  20. 364
  21. 128.85
  22. 28
  23. 420
  24. 636
  25. 78.8
  26. 100.35
  27. 4761
  28. 247
  29. 8
  30. 229
  31. 195
  32. 224
  33. 150
  34. 90
  35. 99.45
  36. 139
  37. 496
  38. 272
  39. 3600
  40. 7.3

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