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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 919 · 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. 1.25 × 4 =
  2. 2.107 × 4 =
  3. 3.Best estimate of 98 × 3? (a) 3000 (b) 300 (c) 30 (d) 600
  4. 4.276 − 86 =
  5. 5.1600 ÷ 50 =
  6. 6.1% of 260 =
  7. 7.800 ÷ 25 =
  8. 8.700 ÷ 25 =
  9. 9.200 + 17 =
  10. 10.7 × 15 =
  11. 11.Check with nines: 43 × 40 = 1720. Correct or wrong? (a) correct (b) wrong
  12. 12.22 × 8 =
  13. 13.26 × 50 =
  14. 14.44 × 8 =
  15. 15.1 + 8 + 2 + 7 =
  16. 16.11 + 15 + 21 + 65 =
  17. 17.5% of 440 =
  18. 18.8 × 15 =
  19. 19.30 + 50 + 17 + 59 =
  20. 20.Best estimate of 71 × 68? (a) 9800 (b) 490 (c) 49000 (d) 4900
  21. 21.10% of 430 =
  22. 22.₹42.50 − ₹39.65 =
  23. 23.3 + 8 + 7 + 3 =
  24. 24.400 ÷ 50 =
  25. 25.1 + 4 + 6 + 9 =
  26. 26.40 × 8 =
  27. 27.5 + 4 + 3 + 7 + 5 =
  28. 28.41 × 50 =
  29. 29.220 − 26 =
  30. 30.Check with nines: 86 × 16 = 1374. Correct or wrong? (a) wrong (b) correct
  31. 31.424 + 59 =
  32. 32.705 ÷ 5 =
  33. 33.13 × 15 =
  34. 34.610 ÷ 5 =
  35. 35.17 × 15 =
  36. 36.16 × 14 =
  37. 37.₹56.15 + ₹43.20 =
  38. 38.₹5.45 + ₹15.40 =
  39. 39.309 − 89 =
  40. 40.34 + 24 + 21 + 68 =

Answer key

  1. 100
  2. 428
  3. 300
  4. 190
  5. 32
  6. 2.6
  7. 32
  8. 28
  9. 217
  10. 105
  11. correct
  12. 176
  13. 1300
  14. 352
  15. 18
  16. 112
  17. 22
  18. 120
  19. 156
  20. 4900
  21. 43
  22. 2.85
  23. 21
  24. 8
  25. 20
  26. 320
  27. 24
  28. 2050
  29. 194
  30. wrong
  31. 483
  32. 141
  33. 195
  34. 122
  35. 255
  36. 224
  37. 99.35
  38. 20.85
  39. 220
  40. 147

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