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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 290 · 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. 1.19 × 16 =
  2. 2.Check with nines: 30 × 64 = 1922. Correct or wrong? (a) correct (b) wrong
  3. 3.325 ÷ 25 =
  4. 4.132 × 4 =
  5. 5.75 + 31 + 23 + 29 =
  6. 6.91² =
  7. 7.₹11.10 − ₹7.75 =
  8. 8.585 ÷ 5 =
  9. 9.131 × 4 =
  10. 10.15 × 15 =
  11. 11.350 ÷ 50 =
  12. 12.475 ÷ 25 =
  13. 13.6 + 1 + 6 + 2 + 9 =
  14. 14.206 + 19 =
  15. 15.29 × 15 =
  16. 16.Best estimate of 59 × 32? (a) 18000 (b) 180 (c) 1800 (d) 3600
  17. 17.₹24.95 − ₹2.50 =
  18. 18.1050 ÷ 50 =
  19. 19.Best estimate of 88 × 61? (a) 5400 (b) 540 (c) 54000 (d) 10800
  20. 20.11 × 12 =
  21. 21.46 × 15 =
  22. 22.43 + 70 + 47 + 75 =
  23. 23.12 + 45 + 85 + 71 =
  24. 24.324 − 39 =
  25. 25.43 × 8 =
  26. 26.382 − 86 =
  27. 27.218 + 27 =
  28. 28.169 + 88 =
  29. 29.25% of 290 =
  30. 30.3 + 3 + 7 + 3 + 3 =
  31. 31.124 − 77 =
  32. 32.Check with nines: 43 × 97 = 4171. Correct or wrong? (a) wrong (b) correct
  33. 33.589 − 48 =
  34. 34.19 × 18 =
  35. 35.44 × 15 =
  36. 36.14 × 15 =
  37. 37.165 ÷ 5 =
  38. 38.37 × 15 =
  39. 39.41² =
  40. 40.188 − 86 =

Answer key

  1. 304
  2. wrong
  3. 13
  4. 528
  5. 158
  6. 8281
  7. 3.35
  8. 117
  9. 524
  10. 225
  11. 7
  12. 19
  13. 24
  14. 225
  15. 435
  16. 1800
  17. 22.45
  18. 21
  19. 5400
  20. 132
  21. 690
  22. 235
  23. 213
  24. 285
  25. 344
  26. 296
  27. 245
  28. 257
  29. 72.5
  30. 19
  31. 47
  32. correct
  33. 541
  34. 342
  35. 660
  36. 210
  37. 33
  38. 555
  39. 1681
  40. 102

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