Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 724 · 40 questions

The fast method (One-step multiplier): Increase by p%: multiply by (100 + p)% — up 20% is × 1.2. Decrease by p%: multiply by (100 − p)% — down 25% is × 0.75. Easy way to multiply: × the whole number (115 or 75), then ÷ 100.

1. 1.208 decreased by 25% =
2. 2.305 increased by 60% =
3. 3.320 decreased by 35% =
4. 4.755 decreased by 20% =
5. 5.134 increased by 50% =
6. 6.168 decreased by 75% =
7. 7.408 increased by 75% =
8. 8.600 increased by 8% =
9. 9.476 decreased by 75% =
10. 10.538 increased by 50% =
11. 11.740 decreased by 35% =
12. 12.100 increased by 8% =
13. 13.380 increased by 15% =
14. 14.270 increased by 10% =
15. 15.210 decreased by 50% =
16. 16.780 increased by 5% =
17. 17.800 increased by 35% =
18. 18.70 increased by 20% =
19. 19.540 increased by 15% =
20. 20.515 increased by 40% =
21. 21.72 decreased by 25% =
22. 22.420 increased by 35% =
23. 23.380 increased by 60% =
24. 24.520 increased by 15% =
25. 25.800 decreased by 15% =
26. 26.545 increased by 60% =
27. 27.275 decreased by 20% =
28. 28.200 decreased by 5% =
29. 29.365 increased by 20% =
30. 30.688 increased by 75% =
31. 31.290 decreased by 30% =
32. 32.524 increased by 75% =
33. 33.230 decreased by 30% =
34. 34.60 increased by 35% =
35. 35.300 decreased by 10% =
36. 36.260 increased by 35% =
37. 37.794 increased by 50% =
38. 38.550 decreased by 30% =
39. 39.604 decreased by 25% =
40. 40.132 decreased by 25% =

Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths