Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 627 · 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. 1.584 increased by 25% =
2. 2.380 decreased by 75% =
3. 3.140 decreased by 40% =
4. 4.800 increased by 8% =
5. 5.750 increased by 10% =
6. 6.200 decreased by 12% =
7. 7.500 increased by 30% =
8. 8.560 increased by 5% =
9. 9.720 increased by 25% =
10. 10.670 decreased by 30% =
11. 11.680 increased by 5% =
12. 12.175 increased by 8% =
13. 13.760 increased by 10% =
14. 14.445 decreased by 20% =
15. 15.450 increased by 30% =
16. 16.210 increased by 10% =
17. 17.325 decreased by 8% =
18. 18.775 decreased by 8% =
19. 19.240 increased by 15% =
20. 20.560 decreased by 35% =
21. 21.440 increased by 15% =
22. 22.200 decreased by 5% =
23. 23.340 increased by 50% =
24. 24.710 decreased by 10% =
25. 25.140 decreased by 15% =
26. 26.540 decreased by 5% =
27. 27.520 increased by 30% =
28. 28.100 decreased by 30% =
29. 29.656 increased by 25% =
30. 30.208 decreased by 75% =
31. 31.60 decreased by 15% =
32. 32.175 increased by 8% =
33. 33.655 increased by 20% =
34. 34.430 decreased by 10% =
35. 35.330 increased by 30% =
36. 36.500 decreased by 30% =
37. 37.200 decreased by 10% =
38. 38.780 decreased by 15% =
39. 39.340 increased by 35% =
40. 40.416 increased by 50% =

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