Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 765 · 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. 1.175 increased by 8% =
2. 2.40 increased by 30% =
3. 3.340 decreased by 40% =
4. 4.156 decreased by 25% =
5. 5.800 increased by 8% =
6. 6.685 decreased by 40% =
7. 7.40 increased by 75% =
8. 8.650 decreased by 12% =
9. 9.225 decreased by 8% =
10. 10.280 decreased by 75% =
11. 11.575 decreased by 12% =
12. 12.240 increased by 15% =
13. 13.640 increased by 20% =
14. 14.425 increased by 12% =
15. 15.180 increased by 5% =
16. 16.420 increased by 75% =
17. 17.530 increased by 10% =
18. 18.460 increased by 50% =
19. 19.156 increased by 75% =
20. 20.590 increased by 10% =
21. 21.695 increased by 20% =
22. 22.450 increased by 12% =
23. 23.140 decreased by 5% =
24. 24.200 increased by 35% =
25. 25.420 increased by 35% =
26. 26.125 decreased by 20% =
27. 27.730 decreased by 10% =
28. 28.480 increased by 60% =
29. 29.384 increased by 75% =
30. 30.454 increased by 50% =
31. 31.240 decreased by 25% =
32. 32.250 decreased by 12% =
33. 33.728 increased by 75% =
34. 34.40 decreased by 15% =
35. 35.300 increased by 12% =
36. 36.70 decreased by 10% =
37. 37.500 decreased by 35% =
38. 38.350 increased by 30% =
39. 39.525 decreased by 60% =
40. 40.200 decreased by 10% =

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