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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 552 · 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. 1.214 − 26 =
  2. 2.Best estimate of 91 × 38? (a) 36000 (b) 360 (c) 3600 (d) 7200
  3. 3.12 × 19 =
  4. 4.11 × 14 =
  5. 5.Best estimate of 201 × 8? (a) 1600 (b) 160 (c) 16000 (d) 3200
  6. 6.25% of 310 =
  7. 7.548 − 37 =
  8. 8.17 × 11 =
  9. 9.40 + 89 =
  10. 10.93 + 69 =
  11. 11.39² =
  12. 12.5% of 180 =
  13. 13.31² =
  14. 14.₹21.85 + ₹32.50 =
  15. 15.7 + 3 + 8 + 2 + 4 =
  16. 16.18 × 15 =
  17. 17.19 × 16 =
  18. 18.34 × 5 =
  19. 19.69 + 16 + 12 + 35 =
  20. 20.14 × 17 =
  21. 21.70 + 33 + 89 + 86 =
  22. 22.16 × 15 =
  23. 23.83 − 79 =
  24. 24.₹34.95 + ₹2.60 =
  25. 25.63 + 75 + 45 + 68 =
  26. 26.451 + 69 =
  27. 27.₹84.95 + ₹37.85 =
  28. 28.12 × 15 =
  29. 29.18 × 14 =
  30. 30.23 × 5 =
  31. 31.57 + 70 + 18 + 26 =
  32. 32.39 + 51 + 80 + 76 =
  33. 33.19² =
  34. 34.Check with nines: 545 + 314 = 859. Correct or wrong? (a) wrong (b) correct
  35. 35.44 + 88 + 14 + 28 =
  36. 36.40 × 4 =
  37. 37.68 × 8 =
  38. 38.740 ÷ 5 =
  39. 39.54 × 5 =
  40. 40.58 × 50 =

Answer key

  1. 188
  2. 3600
  3. 228
  4. 154
  5. 1600
  6. 77.5
  7. 511
  8. 187
  9. 129
  10. 162
  11. 1521
  12. 9
  13. 961
  14. 54.35
  15. 24
  16. 270
  17. 304
  18. 170
  19. 132
  20. 238
  21. 278
  22. 240
  23. 4
  24. 37.55
  25. 251
  26. 520
  27. 122.8
  28. 180
  29. 252
  30. 115
  31. 171
  32. 246
  33. 361
  34. correct
  35. 174
  36. 160
  37. 544
  38. 148
  39. 270
  40. 2900

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