Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 182 · 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. 1.555 increased by 20% =
2. 2.464 increased by 75% =
3. 3.732 increased by 25% =
4. 4.240 decreased by 5% =
5. 5.596 increased by 75% =
6. 6.460 increased by 15% =
7. 7.440 increased by 35% =
8. 8.590 increased by 60% =
9. 9.540 decreased by 10% =
10. 10.610 increased by 30% =
11. 11.680 decreased by 5% =
12. 12.532 increased by 75% =
13. 13.140 increased by 15% =
14. 14.520 increased by 25% =
15. 15.730 decreased by 20% =
16. 16.715 increased by 60% =
17. 17.120 increased by 5% =
18. 18.250 decreased by 12% =
19. 19.620 increased by 15% =
20. 20.580 increased by 15% =
21. 21.600 decreased by 5% =
22. 22.720 increased by 5% =
23. 23.290 decreased by 20% =
24. 24.50 decreased by 12% =
25. 25.170 increased by 10% =
26. 26.725 decreased by 12% =
27. 27.474 increased by 50% =
28. 28.760 increased by 5% =
29. 29.452 increased by 50% =
30. 30.800 decreased by 5% =
31. 31.480 decreased by 30% =
32. 32.65 decreased by 60% =
33. 33.800 increased by 40% =
34. 34.755 increased by 40% =
35. 35.192 decreased by 75% =
36. 36.50 increased by 12% =
37. 37.450 increased by 12% =
38. 38.75 decreased by 8% =
39. 39.160 increased by 15% =
40. 40.692 increased by 75% =

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