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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 425 · 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.Check with nines: 87 × 49 = 4270. Correct or wrong? (a) wrong (b) correct
  2. 2.101 × 4 =
  3. 3.17 × 15 =
  4. 4.83 × 4 =
  5. 5.20% of 280 =
  6. 6.41 × 4 =
  7. 7.Best estimate of 398 × 5? (a) 4000 (b) 200 (c) 20000 (d) 2000
  8. 8.282 + 59 =
  9. 9.800 ÷ 25 =
  10. 10.15% of 130 =
  11. 11.44 + 55 + 17 + 54 =
  12. 12.625 ÷ 5 =
  13. 13.43 + 25 + 54 + 73 =
  14. 14.225 − 79 =
  15. 15.1 + 4 + 5 + 9 =
  16. 16.31 × 15 =
  17. 17.12 × 17 =
  18. 18.₹20.45 + ₹34.20 =
  19. 19.112 × 4 =
  20. 20.3 + 4 + 7 + 2 =
  21. 21.92 × 4 =
  22. 22.418 + 78 =
  23. 23.115 + 88 =
  24. 24.Check with nines: 16 × 14 = 224. Correct or wrong? (a) correct (b) wrong
  25. 25.156 × 4 =
  26. 26.498 + 29 =
  27. 27.₹17.65 + ₹17.25 =
  28. 28.47 × 15 =
  29. 29.59 + 53 + 15 + 41 =
  30. 30.253 + 29 =
  31. 31.48 + 39 =
  32. 32.Check with nines: 74 × 75 = 5546. Correct or wrong? (a) correct (b) wrong
  33. 33.Check with nines: 174 + 141 = 320. Correct or wrong? (a) correct (b) wrong
  34. 34.52 × 5 =
  35. 35.69² =
  36. 36.5% of 80 =
  37. 37.20% of 260 =
  38. 38.73 × 5 =
  39. 39.39 × 50 =
  40. 40.625 ÷ 25 =

Answer key

  1. wrong
  2. 404
  3. 255
  4. 332
  5. 56
  6. 164
  7. 2000
  8. 341
  9. 32
  10. 19.5
  11. 170
  12. 125
  13. 195
  14. 146
  15. 19
  16. 465
  17. 204
  18. 54.65
  19. 448
  20. 16
  21. 368
  22. 496
  23. 203
  24. correct
  25. 624
  26. 527
  27. 34.9
  28. 705
  29. 168
  30. 282
  31. 87
  32. wrong
  33. wrong
  34. 260
  35. 4761
  36. 4
  37. 52
  38. 365
  39. 1950
  40. 25

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