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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 134 · 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 × 15 =
  2. 2.449 − 29 =
  3. 3.4 + 7 + 6 + 4 =
  4. 4.35 + 24 + 24 + 63 =
  5. 5.65 + 49 =
  6. 6.69² =
  7. 7.25% of 660 =
  8. 8.Check with nines: 387 + 691 = 1078. Correct or wrong? (a) correct (b) wrong
  9. 9.61 × 15 =
  10. 10.27 × 4 =
  11. 11.1 + 6 + 9 + 1 =
  12. 12.57 × 15 =
  13. 13.122 × 4 =
  14. 14.12 + 33 + 30 + 72 =
  15. 15.8 + 5 + 6 + 2 =
  16. 16.24 + 33 + 22 + 19 =
  17. 17.41 + 18 + 25 + 45 =
  18. 18.66 × 8 =
  19. 19.₹49.30 − ₹46.20 =
  20. 20.Check with nines: 30 × 53 = 1586. Correct or wrong? (a) correct (b) wrong
  21. 21.81 + 67 =
  22. 22.376 + 67 =
  23. 23.217 + 19 =
  24. 24.248 + 49 =
  25. 25.41 × 5 =
  26. 26.138 × 4 =
  27. 27.9 + 1 + 8 + 9 + 2 =
  28. 28.6 + 1 + 5 + 4 + 8 =
  29. 29.7 × 15 =
  30. 30.290 ÷ 5 =
  31. 31.33 + 15 + 64 + 48 =
  32. 32.39 × 15 =
  33. 33.21² =
  34. 34.5% of 140 =
  35. 35.1 + 5 + 5 + 5 + 1 =
  36. 36.₹36.95 − ₹15.65 =
  37. 37.186 − 98 =
  38. 38.81² =
  39. 39.Best estimate of 703 × 6? (a) 420 (b) 4200 (c) 8400 (d) 42000
  40. 40.Check with nines: 63 × 75 = 4727. Correct or wrong? (a) correct (b) wrong

Answer key

  1. 375
  2. 420
  3. 21
  4. 146
  5. 114
  6. 4761
  7. 165
  8. correct
  9. 915
  10. 108
  11. 17
  12. 855
  13. 488
  14. 147
  15. 21
  16. 98
  17. 129
  18. 528
  19. 3.1
  20. wrong
  21. 148
  22. 443
  23. 236
  24. 297
  25. 205
  26. 552
  27. 29
  28. 24
  29. 105
  30. 58
  31. 160
  32. 585
  33. 441
  34. 7
  35. 17
  36. 21.3
  37. 88
  38. 6561
  39. 4200
  40. wrong

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