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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 521 · 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.Best estimate of 503 × 4? (a) 20000 (b) 200 (c) 2000 (d) 4000
  2. 2.137 + 48 =
  3. 3.24 × 5 =
  4. 4.173 + 17 =
  5. 5.40 × 5 =
  6. 6.81 + 22 + 76 + 28 =
  7. 7.48 × 5 =
  8. 8.7 + 1 + 3 + 7 =
  9. 9.37 × 50 =
  10. 10.13 × 17 =
  11. 11.13 × 17 =
  12. 12.140 ÷ 5 =
  13. 13.1% of 540 =
  14. 14.Check with nines: 18 × 23 = 414. Correct or wrong? (a) wrong (b) correct
  15. 15.11 × 15 =
  16. 16.275 + 39 =
  17. 17.560 ÷ 5 =
  18. 18.69² =
  19. 19.159 − 88 =
  20. 20.20 × 5 =
  21. 21.86 + 38 =
  22. 22.9 + 5 + 2 + 5 =
  23. 23.12 × 8 =
  24. 24.Best estimate of 22 × 62? (a) 2400 (b) 1200 (c) 12000 (d) 120
  25. 25.Best estimate of 28 × 69? (a) 2100 (b) 210 (c) 21000 (d) 4200
  26. 26.151 + 18 =
  27. 27.458 + 19 =
  28. 28.199 − 67 =
  29. 29.₹58.30 − ₹43.30 =
  30. 30.27 × 5 =
  31. 31.6 + 7 + 8 + 7 + 4 =
  32. 32.92 − 66 =
  33. 33.Best estimate of 697 × 6? (a) 8400 (b) 420 (c) 4200 (d) 42000
  34. 34.452 + 38 =
  35. 35.51 × 8 =
  36. 36.220 + 87 =
  37. 37.29 × 50 =
  38. 38.₹49.35 − ₹41.50 =
  39. 39.58 × 15 =
  40. 40.20% of 570 =

Answer key

  1. 2000
  2. 185
  3. 120
  4. 190
  5. 200
  6. 207
  7. 240
  8. 18
  9. 1850
  10. 221
  11. 221
  12. 28
  13. 5.4
  14. correct
  15. 165
  16. 314
  17. 112
  18. 4761
  19. 71
  20. 100
  21. 124
  22. 21
  23. 96
  24. 1200
  25. 2100
  26. 169
  27. 477
  28. 132
  29. 15
  30. 135
  31. 32
  32. 26
  33. 4200
  34. 490
  35. 408
  36. 307
  37. 1450
  38. 7.85
  39. 870
  40. 114

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