Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 743 · 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. 1.500 decreased by 8% =
2. 2.275 increased by 8% =
3. 3.684 increased by 50% =
4. 4.800 decreased by 12% =
5. 5.540 increased by 75% =
6. 6.530 increased by 40% =
7. 7.200 increased by 25% =
8. 8.435 decreased by 20% =
9. 9.320 increased by 75% =
10. 10.350 decreased by 12% =
11. 11.400 decreased by 5% =
12. 12.324 decreased by 25% =
13. 13.800 increased by 35% =
14. 14.130 decreased by 60% =
15. 15.340 increased by 15% =
16. 16.310 increased by 10% =
17. 17.596 increased by 75% =
18. 18.100 decreased by 8% =
19. 19.600 decreased by 5% =
20. 20.330 increased by 60% =
21. 21.260 increased by 15% =
22. 22.110 increased by 60% =
23. 23.570 increased by 60% =
24. 24.195 increased by 20% =
25. 25.175 increased by 12% =
26. 26.625 increased by 12% =
27. 27.490 decreased by 20% =
28. 28.706 increased by 50% =
29. 29.795 decreased by 40% =
30. 30.460 decreased by 20% =
31. 31.325 decreased by 40% =
32. 32.760 increased by 50% =
33. 33.760 increased by 20% =
34. 34.530 increased by 30% =
35. 35.364 decreased by 25% =
36. 36.280 increased by 5% =
37. 37.175 decreased by 8% =
38. 38.330 increased by 60% =
39. 39.475 increased by 12% =
40. 40.65 decreased by 20% =

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