Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 897 · 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. 1.532 decreased by 25% =
2. 2.460 increased by 30% =
3. 3.708 increased by 75% =
4. 4.90 increased by 60% =
5. 5.500 increased by 35% =
6. 6.635 decreased by 60% =
7. 7.264 decreased by 50% =
8. 8.490 decreased by 30% =
9. 9.434 increased by 50% =
10. 10.240 increased by 10% =
11. 11.108 decreased by 25% =
12. 12.236 decreased by 25% =
13. 13.730 increased by 10% =
14. 14.500 increased by 35% =
15. 15.376 decreased by 75% =
16. 16.500 increased by 5% =
17. 17.110 increased by 30% =
18. 18.162 increased by 50% =
19. 19.755 decreased by 60% =
20. 20.200 decreased by 25% =
21. 21.720 increased by 75% =
22. 22.110 increased by 30% =
23. 23.454 increased by 50% =
24. 24.48 increased by 25% =
25. 25.275 decreased by 8% =
26. 26.555 increased by 20% =
27. 27.220 decreased by 15% =
28. 28.580 increased by 15% =
29. 29.628 increased by 25% =
30. 30.775 decreased by 12% =
31. 31.460 decreased by 10% =
32. 32.770 decreased by 40% =
33. 33.345 increased by 60% =
34. 34.340 decreased by 5% =
35. 35.325 increased by 12% =
36. 36.300 decreased by 12% =
37. 37.80 increased by 30% =
38. 38.630 increased by 30% =
39. 39.188 increased by 75% =
40. 40.300 decreased by 8% =

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