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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 424 · 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. 1.11 × 16 =
  2. 2.21² =
  3. 3.71² =
  4. 4.202 + 78 =
  5. 5.Check with nines: 154 + 410 = 564. Correct or wrong? (a) correct (b) wrong
  6. 6.15% of 240 =
  7. 7.187 + 67 =
  8. 8.84 × 5 =
  9. 9.151 − 77 =
  10. 10.31² =
  11. 11.2 + 5 + 7 + 5 =
  12. 12.2 + 4 + 8 + 4 + 8 =
  13. 13.20% of 160 =
  14. 14.19 × 11 =
  15. 15.₹47.80 + ₹3.35 =
  16. 16.288 + 58 =
  17. 17.1% of 310 =
  18. 18.238 − 39 =
  19. 19.161 − 26 =
  20. 20.14 × 4 =
  21. 21.79² =
  22. 22.25% of 70 =
  23. 23.60 + 34 + 77 + 39 =
  24. 24.27 + 75 + 49 + 41 =
  25. 25.539 − 88 =
  26. 26.559 − 16 =
  27. 27.20 × 15 =
  28. 28.60 × 50 =
  29. 29.12 + 25 + 51 + 89 =
  30. 30.24 × 15 =
  31. 31.137 − 87 =
  32. 32.Best estimate of 81 × 29? (a) 240 (b) 4800 (c) 24000 (d) 2400
  33. 33.245 + 17 =
  34. 34.550 ÷ 25 =
  35. 35.36 × 8 =
  36. 36.32 + 49 =
  37. 37.5% of 420 =
  38. 38.130 − 66 =
  39. 39.75 × 5 =
  40. 40.34 × 4 =

Answer key

  1. 176
  2. 441
  3. 5041
  4. 280
  5. correct
  6. 36
  7. 254
  8. 420
  9. 74
  10. 961
  11. 19
  12. 26
  13. 32
  14. 209
  15. 51.15
  16. 346
  17. 3.1
  18. 199
  19. 135
  20. 56
  21. 6241
  22. 17.5
  23. 210
  24. 192
  25. 451
  26. 543
  27. 300
  28. 3000
  29. 177
  30. 360
  31. 50
  32. 2400
  33. 262
  34. 22
  35. 288
  36. 81
  37. 21
  38. 64
  39. 375
  40. 136

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