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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 59 · 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.Best estimate of 398 × 6? (a) 24000 (b) 4800 (c) 240 (d) 2400
  2. 2.16 × 16 =
  3. 3.47 × 50 =
  4. 4.65 × 50 =
  5. 5.386 + 19 =
  6. 6.7 + 2 + 3 + 2 =
  7. 7.925 ÷ 25 =
  8. 8.7 + 3 + 8 + 3 =
  9. 9.9 + 4 + 5 + 5 =
  10. 10.8 + 4 + 7 + 3 + 6 =
  11. 11.9 + 1 + 1 + 7 =
  12. 12.125 + 19 =
  13. 13.33 + 87 =
  14. 14.2 + 3 + 7 + 4 + 9 =
  15. 15.46 × 5 =
  16. 16.11 × 19 =
  17. 17.32 × 5 =
  18. 18.49² =
  19. 19.Check with nines: 192 + 741 = 934. Correct or wrong? (a) wrong (b) correct
  20. 20.111 × 4 =
  21. 21.571 − 79 =
  22. 22.42 + 67 =
  23. 23.21² =
  24. 24.Check with nines: 44 × 81 = 3564. Correct or wrong? (a) correct (b) wrong
  25. 25.69² =
  26. 26.2 + 2 + 1 + 7 + 9 =
  27. 27.225 ÷ 25 =
  28. 28.69 + 46 + 76 + 80 =
  29. 29.13 × 19 =
  30. 30.162 + 88 =
  31. 31.53 + 29 + 33 + 72 =
  32. 32.365 ÷ 5 =
  33. 33.Best estimate of 89 × 61? (a) 5400 (b) 540 (c) 10800 (d) 54000
  34. 34.30 + 28 + 24 + 13 =
  35. 35.154 − 48 =
  36. 36.300 ÷ 5 =
  37. 37.₹52.30 − ₹25.80 =
  38. 38.Best estimate of 29 × 22? (a) 60 (b) 600 (c) 1200 (d) 6000
  39. 39.47 + 88 + 67 + 15 =
  40. 40.1% of 480 =

Answer key

  1. 2400
  2. 256
  3. 2350
  4. 3250
  5. 405
  6. 14
  7. 37
  8. 21
  9. 23
  10. 28
  11. 18
  12. 144
  13. 120
  14. 25
  15. 230
  16. 209
  17. 160
  18. 2401
  19. wrong
  20. 444
  21. 492
  22. 109
  23. 441
  24. correct
  25. 4761
  26. 21
  27. 9
  28. 271
  29. 247
  30. 250
  31. 187
  32. 73
  33. 5400
  34. 95
  35. 106
  36. 60
  37. 26.5
  38. 600
  39. 217
  40. 4.8

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