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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 679 · 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. 1.1 + 3 + 9 + 1 =
  2. 2.₹17.30 + ₹21.20 =
  3. 3.51² =
  4. 4.Best estimate of 697 × 5? (a) 35000 (b) 7000 (c) 350 (d) 3500
  5. 5.69² =
  6. 6.88 + 49 =
  7. 7.5% of 400 =
  8. 8.21 × 8 =
  9. 9.64 + 99 =
  10. 10.13 × 14 =
  11. 11.225 ÷ 25 =
  12. 12.19 × 11 =
  13. 13.Check with nines: 969 + 222 = 1191. Correct or wrong? (a) wrong (b) correct
  14. 14.10% of 720 =
  15. 15.28 × 8 =
  16. 16.50% of 830 =
  17. 17.10 × 15 =
  18. 18.3 + 4 + 6 + 6 =
  19. 19.61² =
  20. 20.1250 ÷ 50 =
  21. 21.175 ÷ 5 =
  22. 22.28 + 18 =
  23. 23.₹97.30 − ₹36.25 =
  24. 24.Best estimate of 202 × 8? (a) 160 (b) 16000 (c) 1600 (d) 3200
  25. 25.13 + 61 + 43 + 48 =
  26. 26.83 × 4 =
  27. 27.128 + 69 =
  28. 28.575 ÷ 5 =
  29. 29.68 × 5 =
  30. 30.675 ÷ 25 =
  31. 31.74 + 22 + 63 + 11 =
  32. 32.103 + 18 =
  33. 33.5% of 830 =
  34. 34.Check with nines: 69 × 43 = 2967. Correct or wrong? (a) wrong (b) correct
  35. 35.15 + 79 + 45 + 39 =
  36. 36.28 + 37 =
  37. 37.77 × 4 =
  38. 38.341 + 77 =
  39. 39.286 + 38 =
  40. 40.Check with nines: 694 + 545 = 1242. Correct or wrong? (a) correct (b) wrong

Answer key

  1. 14
  2. 38.5
  3. 2601
  4. 3500
  5. 4761
  6. 137
  7. 20
  8. 168
  9. 163
  10. 182
  11. 9
  12. 209
  13. correct
  14. 72
  15. 224
  16. 415
  17. 150
  18. 19
  19. 3721
  20. 25
  21. 35
  22. 46
  23. 61.05
  24. 1600
  25. 165
  26. 332
  27. 197
  28. 115
  29. 340
  30. 27
  31. 170
  32. 121
  33. 41.5
  34. correct
  35. 178
  36. 65
  37. 308
  38. 418
  39. 324
  40. wrong

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