Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 328 · 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. 1.475 decreased by 20% =
2. 2.788 decreased by 50% =
3. 3.52 increased by 75% =
4. 4.296 decreased by 50% =
5. 5.672 decreased by 75% =
6. 6.550 increased by 10% =
7. 7.195 increased by 40% =
8. 8.40 increased by 10% =
9. 9.310 increased by 10% =
10. 10.180 decreased by 10% =
11. 11.370 increased by 30% =
12. 12.210 increased by 10% =
13. 13.220 decreased by 30% =
14. 14.620 increased by 50% =
15. 15.110 increased by 30% =
16. 16.150 decreased by 60% =
17. 17.635 increased by 20% =
18. 18.180 decreased by 20% =
19. 19.300 decreased by 12% =
20. 20.212 increased by 75% =
21. 21.52 decreased by 75% =
22. 22.260 increased by 75% =
23. 23.560 decreased by 15% =
24. 24.100 decreased by 20% =
25. 25.710 increased by 40% =
26. 26.60 decreased by 30% =
27. 27.256 increased by 25% =
28. 28.210 increased by 10% =
29. 29.100 decreased by 5% =
30. 30.65 increased by 20% =
31. 31.60 increased by 35% =
32. 32.160 decreased by 60% =
33. 33.300 increased by 8% =
34. 34.80 decreased by 5% =
35. 35.280 increased by 15% =
36. 36.660 increased by 5% =
37. 37.200 increased by 25% =
38. 38.720 decreased by 35% =
39. 39.440 decreased by 30% =
40. 40.404 increased by 50% =

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