Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 602 · 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. 1.760 decreased by 5% =
2. 2.305 increased by 60% =
3. 3.550 increased by 30% =
4. 4.440 decreased by 15% =
5. 5.60 decreased by 15% =
6. 6.305 increased by 20% =
7. 7.675 increased by 12% =
8. 8.720 increased by 15% =
9. 9.644 decreased by 50% =
10. 10.500 increased by 35% =
11. 11.164 increased by 50% =
12. 12.114 decreased by 50% =
13. 13.100 increased by 8% =
14. 14.664 increased by 25% =
15. 15.160 decreased by 15% =
16. 16.170 decreased by 20% =
17. 17.340 decreased by 15% =
18. 18.210 decreased by 10% =
19. 19.560 increased by 15% =
20. 20.500 increased by 5% =
21. 21.100 decreased by 5% =
22. 22.480 decreased by 5% =
23. 23.540 decreased by 5% =
24. 24.788 decreased by 25% =
25. 25.480 decreased by 15% =
26. 26.338 decreased by 50% =
27. 27.520 increased by 5% =
28. 28.495 increased by 40% =
29. 29.50 increased by 40% =
30. 30.308 decreased by 75% =
31. 31.305 decreased by 40% =
32. 32.575 decreased by 12% =
33. 33.736 decreased by 75% =
34. 34.180 increased by 10% =
35. 35.180 increased by 20% =
36. 36.350 increased by 10% =
37. 37.100 decreased by 15% =
38. 38.40 increased by 50% =
39. 39.620 increased by 40% =
40. 40.180 increased by 15% =

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