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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 559 · 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. 1.11 × 16 =
  2. 2.18 + 81 + 33 + 29 =
  3. 3.31 × 15 =
  4. 4.38 × 5 =
  5. 5.25% of 320 =
  6. 6.573 − 76 =
  7. 7.25% of 300 =
  8. 8.12 × 15 =
  9. 9.Best estimate of 599 × 6? (a) 3600 (b) 36000 (c) 7200 (d) 360
  10. 10.20% of 370 =
  11. 11.9 × 15 =
  12. 12.28 + 30 + 36 + 81 =
  13. 13.40 + 27 =
  14. 14.₹19.75 − ₹13.85 =
  15. 15.48 × 15 =
  16. 16.319 + 28 =
  17. 17.52 × 8 =
  18. 18.18 × 12 =
  19. 19.20 × 15 =
  20. 20.28 × 8 =
  21. 21.2 + 7 + 3 + 8 =
  22. 22.13 × 14 =
  23. 23.3 + 8 + 2 + 3 =
  24. 24.37 × 15 =
  25. 25.₹86.70 + ₹28.05 =
  26. 26.Check with nines: 664 + 680 = 1344. Correct or wrong? (a) correct (b) wrong
  27. 27.396 + 77 =
  28. 28.735 ÷ 5 =
  29. 29.44 + 18 =
  30. 30.37 + 64 + 18 + 32 =
  31. 31.53 × 5 =
  32. 32.60 × 5 =
  33. 33.12 × 12 =
  34. 34.20% of 100 =
  35. 35.6 + 3 + 6 + 1 + 9 =
  36. 36.Best estimate of 78 × 88? (a) 7200 (b) 14400 (c) 720 (d) 72000
  37. 37.66 + 14 + 12 + 20 =
  38. 38.211 − 39 =
  39. 39.66 + 37 =
  40. 40.Check with nines: 412 + 285 = 689. Correct or wrong? (a) correct (b) wrong

Answer key

  1. 176
  2. 161
  3. 465
  4. 190
  5. 80
  6. 497
  7. 75
  8. 180
  9. 3600
  10. 74
  11. 135
  12. 175
  13. 67
  14. 5.9
  15. 720
  16. 347
  17. 416
  18. 216
  19. 300
  20. 224
  21. 20
  22. 182
  23. 16
  24. 555
  25. 114.75
  26. correct
  27. 473
  28. 147
  29. 62
  30. 151
  31. 265
  32. 300
  33. 144
  34. 20
  35. 25
  36. 7200
  37. 112
  38. 172
  39. 103
  40. wrong

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