Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 972 · 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. 1.325 decreased by 60% =
2. 2.210 decreased by 10% =
3. 3.295 decreased by 60% =
4. 4.780 increased by 5% =
5. 5.784 increased by 50% =
6. 6.480 increased by 15% =
7. 7.560 decreased by 5% =
8. 8.780 increased by 20% =
9. 9.50 increased by 20% =
10. 10.450 increased by 12% =
11. 11.490 increased by 50% =
12. 12.720 increased by 30% =
13. 13.230 decreased by 10% =
14. 14.50 increased by 8% =
15. 15.650 increased by 12% =
16. 16.60 increased by 10% =
17. 17.575 decreased by 20% =
18. 18.110 decreased by 40% =
19. 19.440 increased by 35% =
20. 20.220 decreased by 30% =
21. 21.60 increased by 15% =
22. 22.680 increased by 35% =
23. 23.410 increased by 30% =
24. 24.185 decreased by 20% =
25. 25.650 decreased by 8% =
26. 26.740 increased by 5% =
27. 27.468 decreased by 50% =
28. 28.795 increased by 60% =
29. 29.650 increased by 60% =
30. 30.468 decreased by 75% =
31. 31.540 decreased by 15% =
32. 32.385 increased by 20% =
33. 33.440 decreased by 20% =
34. 34.525 decreased by 60% =
35. 35.172 decreased by 25% =
36. 36.400 decreased by 12% =
37. 37.205 increased by 20% =
38. 38.325 decreased by 8% =
39. 39.450 decreased by 10% =
40. 40.285 decreased by 40% =

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