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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 275 · 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. 1.1% of 150 =
  2. 2.₹22.65 − ₹5.95 =
  3. 3.169 + 97 =
  4. 4.162 + 17 =
  5. 5.50% of 110 =
  6. 6.489 − 69 =
  7. 7.12 × 14 =
  8. 8.13 × 11 =
  9. 9.44 × 15 =
  10. 10.118 + 78 =
  11. 11.148 × 4 =
  12. 12.18 × 12 =
  13. 13.₹40.95 − ₹20.40 =
  14. 14.43 + 19 + 67 + 72 =
  15. 15.10% of 900 =
  16. 16.₹65.35 + ₹46.80 =
  17. 17.Best estimate of 59 × 19? (a) 1200 (b) 12000 (c) 120 (d) 2400
  18. 18.₹66.10 + ₹15.30 =
  19. 19.61 + 60 + 70 + 81 =
  20. 20.63 × 5 =
  21. 21.17 × 15 =
  22. 22.₹95.70 − ₹27.95 =
  23. 23.188 + 57 =
  24. 24.Check with nines: 785 + 287 = 1072. Correct or wrong? (a) correct (b) wrong
  25. 25.Check with nines: 122 + 622 = 744. Correct or wrong? (a) correct (b) wrong
  26. 26.12 × 12 =
  27. 27.17 + 56 + 58 + 56 =
  28. 28.1 + 6 + 6 + 4 + 7 =
  29. 29.19 × 4 =
  30. 30.14 + 57 + 71 + 80 =
  31. 31.20 × 15 =
  32. 32.₹50.35 + ₹16.45 =
  33. 33.87 + 57 + 24 + 19 =
  34. 34.304 + 78 =
  35. 35.277 − 17 =
  36. 36.79² =
  37. 37.25% of 780 =
  38. 38.210 + 47 =
  39. 39.Check with nines: 53 × 16 = 848. Correct or wrong? (a) wrong (b) correct
  40. 40.14 × 18 =

Answer key

  1. 1.5
  2. 16.7
  3. 266
  4. 179
  5. 55
  6. 420
  7. 168
  8. 143
  9. 660
  10. 196
  11. 592
  12. 216
  13. 20.55
  14. 201
  15. 90
  16. 112.15
  17. 1200
  18. 81.4
  19. 272
  20. 315
  21. 255
  22. 67.75
  23. 245
  24. correct
  25. correct
  26. 144
  27. 187
  28. 24
  29. 76
  30. 222
  31. 300
  32. 66.8
  33. 187
  34. 382
  35. 260
  36. 6241
  37. 195
  38. 257
  39. correct
  40. 252

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