Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 293 · 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. 1.750 decreased by 12% =
2. 2.116 increased by 75% =
3. 3.120 increased by 30% =
4. 4.460 decreased by 25% =
5. 5.136 increased by 75% =
6. 6.55 increased by 40% =
7. 7.630 decreased by 40% =
8. 8.490 increased by 30% =
9. 9.580 increased by 30% =
10. 10.460 increased by 15% =
11. 11.120 decreased by 5% =
12. 12.144 decreased by 75% =
13. 13.625 increased by 20% =
14. 14.660 decreased by 5% =
15. 15.200 increased by 20% =
16. 16.490 decreased by 30% =
17. 17.328 increased by 75% =
18. 18.204 decreased by 25% =
19. 19.800 increased by 10% =
20. 20.655 decreased by 20% =
21. 21.70 increased by 10% =
22. 22.520 increased by 15% =
23. 23.290 decreased by 60% =
24. 24.630 decreased by 60% =
25. 25.380 increased by 10% =
26. 26.56 increased by 25% =
27. 27.240 decreased by 10% =
28. 28.600 increased by 35% =
29. 29.45 decreased by 40% =
30. 30.590 increased by 40% =
31. 31.370 decreased by 10% =
32. 32.550 increased by 8% =
33. 33.320 decreased by 5% =
34. 34.40 decreased by 5% =
35. 35.764 decreased by 25% =
36. 36.544 increased by 75% =
37. 37.700 increased by 5% =
38. 38.260 decreased by 35% =
39. 39.720 decreased by 35% =
40. 40.470 increased by 20% =

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