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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 139 · 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. 1.18 × 15 =
  2. 2.3 + 2 + 2 + 7 + 4 =
  3. 3.28 × 5 =
  4. 4.60 + 28 + 71 + 68 =
  5. 5.60 × 4 =
  6. 6.173 − 88 =
  7. 7.409 − 69 =
  8. 8.3 + 6 + 9 + 7 + 4 =
  9. 9.955 ÷ 5 =
  10. 10.110 + 58 =
  11. 11.6 × 15 =
  12. 12.5 + 4 + 7 + 3 + 7 =
  13. 13.Check with nines: 176 + 661 = 835. Correct or wrong? (a) wrong (b) correct
  14. 14.118 × 4 =
  15. 15.15 + 55 + 43 + 42 =
  16. 16.49 × 5 =
  17. 17.10% of 380 =
  18. 18.Check with nines: 80 × 27 = 2157. Correct or wrong? (a) correct (b) wrong
  19. 19.67 × 8 =
  20. 20.₹97.90 − ₹35.60 =
  21. 21.95 − 47 =
  22. 22.42 × 4 =
  23. 23.41 + 59 + 54 + 72 =
  24. 24.79² =
  25. 25.14 × 16 =
  26. 26.6 + 8 + 4 + 6 + 9 =
  27. 27.₹78.60 + ₹29.85 =
  28. 28.16 × 15 =
  29. 29.58 + 58 + 69 + 28 =
  30. 30.39 × 15 =
  31. 31.6 + 4 + 1 + 3 + 7 =
  32. 32.41 × 4 =
  33. 33.13 × 14 =
  34. 34.4 + 3 + 6 + 9 =
  35. 35.20% of 140 =
  36. 36.134 × 4 =
  37. 37.500 ÷ 50 =
  38. 38.43 × 8 =
  39. 39.72 × 5 =
  40. 40.228 + 97 =

Answer key

  1. 270
  2. 18
  3. 140
  4. 227
  5. 240
  6. 85
  7. 340
  8. 29
  9. 191
  10. 168
  11. 90
  12. 26
  13. wrong
  14. 472
  15. 155
  16. 245
  17. 38
  18. wrong
  19. 536
  20. 62.3
  21. 48
  22. 168
  23. 226
  24. 6241
  25. 224
  26. 33
  27. 108.45
  28. 240
  29. 213
  30. 585
  31. 21
  32. 164
  33. 182
  34. 22
  35. 28
  36. 536
  37. 10
  38. 344
  39. 360
  40. 325

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