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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 355 · 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: 606 + 397 = 1003. Correct or wrong? (a) correct (b) wrong
  2. 2.1% of 800 =
  3. 3.51 × 5 =
  4. 4.30 × 8 =
  5. 5.473 − 58 =
  6. 6.₹72.90 + ₹38.25 =
  7. 7.63 + 45 + 38 + 29 =
  8. 8.375 ÷ 25 =
  9. 9.40 × 15 =
  10. 10.14 × 15 =
  11. 11.₹40.15 + ₹12.60 =
  12. 12.10% of 870 =
  13. 13.40 + 41 + 23 + 37 =
  14. 14.7 + 2 + 6 + 8 + 3 =
  15. 15.18 × 13 =
  16. 16.Check with nines: 416 + 576 = 990. Correct or wrong? (a) correct (b) wrong
  17. 17.75 + 20 + 43 + 27 =
  18. 18.215 ÷ 5 =
  19. 19.5% of 520 =
  20. 20.55 × 8 =
  21. 21.17 × 13 =
  22. 22.301 − 18 =
  23. 23.412 + 79 =
  24. 24.Check with nines: 50 × 69 = 3450. Correct or wrong? (a) correct (b) wrong
  25. 25.5% of 120 =
  26. 26.18 × 12 =
  27. 27.₹44.20 + ₹37.05 =
  28. 28.104 − 68 =
  29. 29.1425 ÷ 25 =
  30. 30.14 × 4 =
  31. 31.1350 ÷ 50 =
  32. 32.246 + 18 =
  33. 33.242 + 77 =
  34. 34.15 × 15 =
  35. 35.Best estimate of 798 × 7? (a) 11200 (b) 5600 (c) 56000 (d) 560
  36. 36.1% of 370 =
  37. 37.68 + 58 =
  38. 38.105 + 67 =
  39. 39.432 + 37 =
  40. 40.363 + 57 =

Answer key

  1. correct
  2. 8
  3. 255
  4. 240
  5. 415
  6. 111.15
  7. 175
  8. 15
  9. 600
  10. 210
  11. 52.75
  12. 87
  13. 141
  14. 26
  15. 234
  16. wrong
  17. 165
  18. 43
  19. 26
  20. 440
  21. 221
  22. 283
  23. 491
  24. correct
  25. 6
  26. 216
  27. 81.25
  28. 36
  29. 57
  30. 56
  31. 27
  32. 264
  33. 319
  34. 225
  35. 5600
  36. 3.7
  37. 126
  38. 172
  39. 469
  40. 420

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