Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 33 · 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. 1.460 increased by 35% =
2. 2.50 decreased by 8% =
3. 3.224 increased by 25% =
4. 4.250 increased by 12% =
5. 5.620 decreased by 15% =
6. 6.220 decreased by 60% =
7. 7.100 decreased by 30% =
8. 8.100 increased by 35% =
9. 9.140 increased by 35% =
10. 10.85 increased by 60% =
11. 11.215 decreased by 20% =
12. 12.84 decreased by 75% =
13. 13.520 increased by 15% =
14. 14.544 decreased by 75% =
15. 15.360 increased by 15% =
16. 16.360 decreased by 35% =
17. 17.125 decreased by 60% =
18. 18.660 increased by 35% =
19. 19.625 decreased by 60% =
20. 20.425 increased by 8% =
21. 21.360 decreased by 35% =
22. 22.480 increased by 15% =
23. 23.575 increased by 12% =
24. 24.420 decreased by 35% =
25. 25.160 increased by 35% =
26. 26.714 increased by 50% =
27. 27.140 increased by 35% =
28. 28.760 decreased by 10% =
29. 29.740 decreased by 35% =
30. 30.90 decreased by 30% =
31. 31.460 decreased by 10% =
32. 32.465 increased by 40% =
33. 33.150 decreased by 8% =
34. 34.135 increased by 20% =
35. 35.200 increased by 8% =
36. 36.790 increased by 40% =
37. 37.498 increased by 50% =
38. 38.280 increased by 30% =
39. 39.772 decreased by 75% =
40. 40.450 decreased by 10% =

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