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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 802 · 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. 1.20% of 40 =
  2. 2.4 + 4 + 8 + 6 =
  3. 3.46 × 8 =
  4. 4.5 + 5 + 3 + 1 =
  5. 5.28 × 5 =
  6. 6.22 × 15 =
  7. 7.₹84.35 + ₹24.05 =
  8. 8.11 × 18 =
  9. 9.4 + 2 + 8 + 5 =
  10. 10.Check with nines: 359 + 312 = 671. Correct or wrong? (a) wrong (b) correct
  11. 11.2 + 8 + 1 + 2 =
  12. 12.9 + 8 + 9 + 1 + 2 =
  13. 13.₹33.20 − ₹4.25 =
  14. 14.550 ÷ 5 =
  15. 15.39 × 15 =
  16. 16.67 × 8 =
  17. 17.123 + 78 =
  18. 18.200 ÷ 25 =
  19. 19.Best estimate of 602 × 4? (a) 4800 (b) 2400 (c) 240 (d) 24000
  20. 20.273 + 28 =
  21. 21.43 × 15 =
  22. 22.1 + 1 + 4 + 1 + 9 =
  23. 23.Best estimate of 797 × 8? (a) 64000 (b) 640 (c) 12800 (d) 6400
  24. 24.51 + 44 + 39 + 23 =
  25. 25.6 + 9 + 1 + 9 + 1 =
  26. 26.129 × 4 =
  27. 27.79² =
  28. 28.₹54.45 − ₹6.15 =
  29. 29.29² =
  30. 30.17 × 14 =
  31. 31.39² =
  32. 32.127 + 37 =
  33. 33.20% of 40 =
  34. 34.21 × 5 =
  35. 35.16 × 13 =
  36. 36.1 + 2 + 6 + 6 + 4 =
  37. 37.₹79.80 − ₹6.55 =
  38. 38.452 − 39 =
  39. 39.216 − 98 =
  40. 40.54 × 5 =

Answer key

  1. 8
  2. 22
  3. 368
  4. 14
  5. 140
  6. 330
  7. 108.4
  8. 198
  9. 19
  10. correct
  11. 13
  12. 29
  13. 28.95
  14. 110
  15. 585
  16. 536
  17. 201
  18. 8
  19. 2400
  20. 301
  21. 645
  22. 16
  23. 6400
  24. 157
  25. 26
  26. 516
  27. 6241
  28. 48.3
  29. 841
  30. 238
  31. 1521
  32. 164
  33. 8
  34. 105
  35. 208
  36. 19
  37. 73.25
  38. 413
  39. 118
  40. 270

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