Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 884 · 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. 1.200 decreased by 5% =
2. 2.325 increased by 12% =
3. 3.530 decreased by 30% =
4. 4.700 decreased by 75% =
5. 5.275 decreased by 8% =
6. 6.320 increased by 5% =
7. 7.85 increased by 20% =
8. 8.422 decreased by 50% =
9. 9.360 decreased by 30% =
10. 10.540 increased by 10% =
11. 11.350 decreased by 10% =
12. 12.260 decreased by 15% =
13. 13.325 decreased by 60% =
14. 14.190 increased by 50% =
15. 15.58 decreased by 50% =
16. 16.625 decreased by 60% =
17. 17.400 increased by 5% =
18. 18.640 decreased by 15% =
19. 19.50 decreased by 10% =
20. 20.425 decreased by 12% =
21. 21.632 increased by 25% =
22. 22.280 decreased by 75% =
23. 23.400 increased by 35% =
24. 24.710 decreased by 30% =
25. 25.760 decreased by 10% =
26. 26.800 increased by 30% =
27. 27.505 increased by 60% =
28. 28.545 decreased by 40% =
29. 29.250 increased by 12% =
30. 30.665 increased by 20% =
31. 31.700 decreased by 8% =
32. 32.550 increased by 12% =
33. 33.390 increased by 10% =
34. 34.200 increased by 5% =
35. 35.275 decreased by 12% =
36. 36.680 increased by 5% =
37. 37.692 increased by 50% =
38. 38.340 increased by 30% =
39. 39.560 increased by 15% =
40. 40.175 increased by 8% =

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