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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 448 · 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. 1.1100 ÷ 50 =
  2. 2.19² =
  3. 3.Best estimate of 299 × 3? (a) 1800 (b) 9000 (c) 90 (d) 900
  4. 4.12 × 18 =
  5. 5.39² =
  6. 6.91² =
  7. 7.51² =
  8. 8.600 ÷ 5 =
  9. 9.5% of 590 =
  10. 10.31² =
  11. 11.Best estimate of 901 × 4? (a) 7200 (b) 36000 (c) 360 (d) 3600
  12. 12.170 − 36 =
  13. 13.12 × 19 =
  14. 14.59² =
  15. 15.15 × 15 =
  16. 16.42 + 27 + 16 + 87 =
  17. 17.496 + 48 =
  18. 18.68 × 4 =
  19. 19.₹34.30 + ₹5.10 =
  20. 20.138 − 38 =
  21. 21.13 × 12 =
  22. 22.17 × 13 =
  23. 23.73 × 50 =
  24. 24.89² =
  25. 25.62 + 16 + 24 + 56 =
  26. 26.13 × 14 =
  27. 27.262 + 47 =
  28. 28.79 + 75 + 42 + 51 =
  29. 29.Best estimate of 297 × 5? (a) 1500 (b) 3000 (c) 150 (d) 15000
  30. 30.84 × 4 =
  31. 31.86 × 5 =
  32. 32.15% of 640 =
  33. 33.20% of 100 =
  34. 34.Check with nines: 12 × 69 = 828. Correct or wrong? (a) wrong (b) correct
  35. 35.31 + 42 + 88 + 62 =
  36. 36.₹84.15 − ₹35.15 =
  37. 37.465 ÷ 5 =
  38. 38.₹35.25 − ₹31.65 =
  39. 39.2000 ÷ 50 =
  40. 40.14 × 11 =

Answer key

  1. 22
  2. 361
  3. 900
  4. 216
  5. 1521
  6. 8281
  7. 2601
  8. 120
  9. 29.5
  10. 961
  11. 3600
  12. 134
  13. 228
  14. 3481
  15. 225
  16. 172
  17. 544
  18. 272
  19. 39.4
  20. 100
  21. 156
  22. 221
  23. 3650
  24. 7921
  25. 158
  26. 182
  27. 309
  28. 247
  29. 1500
  30. 336
  31. 430
  32. 96
  33. 20
  34. correct
  35. 223
  36. 49
  37. 93
  38. 3.6
  39. 40
  40. 154

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