Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 320 · 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. 1.564 increased by 25% =
2. 2.155 decreased by 40% =
3. 3.610 decreased by 60% =
4. 4.420 increased by 35% =
5. 5.685 increased by 40% =
6. 6.420 increased by 35% =
7. 7.360 decreased by 40% =
8. 8.184 increased by 75% =
9. 9.500 increased by 40% =
10. 10.640 increased by 10% =
11. 11.190 decreased by 30% =
12. 12.760 decreased by 15% =
13. 13.202 increased by 50% =
14. 14.356 decreased by 25% =
15. 15.120 decreased by 5% =
16. 16.430 increased by 20% =
17. 17.180 decreased by 5% =
18. 18.170 increased by 50% =
19. 19.160 decreased by 35% =
20. 20.140 increased by 5% =
21. 21.600 increased by 5% =
22. 22.680 decreased by 35% =
23. 23.610 increased by 20% =
24. 24.275 increased by 12% =
25. 25.220 increased by 20% =
26. 26.420 increased by 5% =
27. 27.135 decreased by 20% =
28. 28.54 increased by 50% =
29. 29.720 decreased by 5% =
30. 30.184 decreased by 75% =
31. 31.475 increased by 8% =
32. 32.200 increased by 5% =
33. 33.690 decreased by 10% =
34. 34.400 decreased by 15% =
35. 35.750 decreased by 40% =
36. 36.404 decreased by 75% =
37. 37.540 decreased by 35% =
38. 38.160 increased by 15% =
39. 39.500 decreased by 12% =
40. 40.620 decreased by 60% =

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