Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 683 · 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. 1.440 increased by 15% =
2. 2.584 decreased by 25% =
3. 3.120 decreased by 5% =
4. 4.360 decreased by 20% =
5. 5.620 increased by 75% =
6. 6.280 increased by 5% =
7. 7.575 decreased by 8% =
8. 8.100 decreased by 30% =
9. 9.600 decreased by 8% =
10. 10.240 decreased by 5% =
11. 11.620 increased by 5% =
12. 12.322 increased by 50% =
13. 13.375 decreased by 12% =
14. 14.140 increased by 5% =
15. 15.395 decreased by 20% =
16. 16.410 increased by 30% =
17. 17.460 increased by 60% =
18. 18.155 decreased by 60% =
19. 19.75 increased by 12% =
20. 20.720 increased by 30% =
21. 21.610 decreased by 10% =
22. 22.252 increased by 75% =
23. 23.800 increased by 12% =
24. 24.156 increased by 75% =
25. 25.750 decreased by 8% =
26. 26.80 decreased by 30% =
27. 27.696 increased by 25% =
28. 28.510 increased by 30% =
29. 29.450 increased by 12% =
30. 30.555 decreased by 60% =
31. 31.480 increased by 60% =
32. 32.100 decreased by 5% =
33. 33.210 increased by 60% =
34. 34.216 decreased by 75% =
35. 35.40 increased by 20% =
36. 36.630 decreased by 10% =
37. 37.675 decreased by 12% =
38. 38.520 decreased by 35% =
39. 39.280 increased by 5% =
40. 40.600 increased by 8% =

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