Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 572 · 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. 1.760 increased by 15% =
2. 2.500 increased by 15% =
3. 3.140 increased by 35% =
4. 4.72 decreased by 25% =
5. 5.500 increased by 8% =
6. 6.404 decreased by 25% =
7. 7.78 decreased by 50% =
8. 8.730 increased by 40% =
9. 9.300 decreased by 12% =
10. 10.175 increased by 8% =
11. 11.440 decreased by 15% =
12. 12.120 decreased by 35% =
13. 13.630 decreased by 30% =
14. 14.576 increased by 75% =
15. 15.536 decreased by 25% =
16. 16.590 increased by 20% =
17. 17.500 increased by 8% =
18. 18.405 decreased by 60% =
19. 19.220 increased by 75% =
20. 20.684 decreased by 75% =
21. 21.660 increased by 15% =
22. 22.752 increased by 25% =
23. 23.190 increased by 40% =
24. 24.615 decreased by 20% =
25. 25.324 decreased by 25% =
26. 26.720 increased by 10% =
27. 27.170 increased by 30% =
28. 28.565 increased by 20% =
29. 29.680 decreased by 35% =
30. 30.280 increased by 5% =
31. 31.720 increased by 25% =
32. 32.204 decreased by 50% =
33. 33.760 increased by 35% =
34. 34.688 increased by 75% =
35. 35.530 increased by 10% =
36. 36.200 decreased by 20% =
37. 37.225 increased by 20% =
38. 38.175 decreased by 12% =
39. 39.100 decreased by 30% =
40. 40.150 increased by 8% =

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