Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 576 · 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. 1.480 decreased by 15% =
2. 2.440 increased by 60% =
3. 3.120 increased by 5% =
4. 4.400 decreased by 12% =
5. 5.105 decreased by 20% =
6. 6.195 increased by 40% =
7. 7.225 decreased by 8% =
8. 8.765 increased by 40% =
9. 9.350 decreased by 12% =
10. 10.760 increased by 15% =
11. 11.580 decreased by 15% =
12. 12.575 decreased by 12% =
13. 13.130 increased by 20% =
14. 14.325 increased by 8% =
15. 15.488 increased by 50% =
16. 16.175 increased by 60% =
17. 17.175 decreased by 12% =
18. 18.780 increased by 25% =
19. 19.758 decreased by 50% =
20. 20.180 decreased by 35% =
21. 21.734 increased by 50% =
22. 22.660 decreased by 20% =
23. 23.468 decreased by 75% =
24. 24.775 decreased by 8% =
25. 25.780 increased by 15% =
26. 26.775 increased by 8% =
27. 27.770 increased by 30% =
28. 28.325 decreased by 12% =
29. 29.236 decreased by 25% =
30. 30.670 decreased by 10% =
31. 31.800 decreased by 35% =
32. 32.325 decreased by 12% =
33. 33.670 decreased by 40% =
34. 34.475 increased by 12% =
35. 35.160 increased by 20% =
36. 36.310 increased by 10% =
37. 37.750 decreased by 12% =
38. 38.160 decreased by 10% =
39. 39.60 increased by 5% =
40. 40.60 decreased by 60% =

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