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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 769 · 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. 1.14 × 11 =
  2. 2.7 + 4 + 3 + 4 + 7 =
  3. 3.16 × 19 =
  4. 4.39² =
  5. 5.194 + 67 =
  6. 6.Best estimate of 82 × 69? (a) 560 (b) 56000 (c) 5600 (d) 11200
  7. 7.51² =
  8. 8.225 − 19 =
  9. 9.65 × 50 =
  10. 10.9 × 15 =
  11. 11.86 × 50 =
  12. 12.71 + 19 =
  13. 13.29² =
  14. 14.55 + 11 + 64 + 67 =
  15. 15.50% of 40 =
  16. 16.Check with nines: 907 + 151 = 1058. Correct or wrong? (a) correct (b) wrong
  17. 17.735 ÷ 5 =
  18. 18.84 + 87 + 41 + 22 =
  19. 19.59² =
  20. 20.326 − 88 =
  21. 21.15% of 220 =
  22. 22.590 ÷ 5 =
  23. 23.25% of 540 =
  24. 24.189 − 17 =
  25. 25.₹56.50 − ₹44.25 =
  26. 26.Best estimate of 32 × 82? (a) 2400 (b) 240 (c) 4800 (d) 24000
  27. 27.484 − 36 =
  28. 28.2 + 1 + 7 + 3 + 3 =
  29. 29.20% of 270 =
  30. 30.30 × 8 =
  31. 31.12 × 19 =
  32. 32.12 × 19 =
  33. 33.19² =
  34. 34.65 + 30 + 46 + 77 =
  35. 35.280 ÷ 5 =
  36. 36.80 + 24 + 64 + 79 =
  37. 37.14 × 13 =
  38. 38.Best estimate of 599 × 3? (a) 1800 (b) 18000 (c) 3600 (d) 180
  39. 39.5% of 660 =
  40. 40.20% of 30 =

Answer key

  1. 154
  2. 25
  3. 304
  4. 1521
  5. 261
  6. 5600
  7. 2601
  8. 206
  9. 3250
  10. 135
  11. 4300
  12. 90
  13. 841
  14. 197
  15. 20
  16. correct
  17. 147
  18. 234
  19. 3481
  20. 238
  21. 33
  22. 118
  23. 135
  24. 172
  25. 12.25
  26. 2400
  27. 448
  28. 16
  29. 54
  30. 240
  31. 228
  32. 228
  33. 361
  34. 218
  35. 56
  36. 247
  37. 182
  38. 1800
  39. 33
  40. 6

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