Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 762 · 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. 1.120 increased by 50% =
2. 2.190 increased by 20% =
3. 3.650 increased by 12% =
4. 4.700 decreased by 15% =
5. 5.620 increased by 35% =
6. 6.140 increased by 20% =
7. 7.670 increased by 30% =
8. 8.220 decreased by 15% =
9. 9.750 increased by 12% =
10. 10.640 decreased by 35% =
11. 11.50 decreased by 8% =
12. 12.100 decreased by 5% =
13. 13.560 decreased by 15% =
14. 14.490 increased by 10% =
15. 15.648 increased by 25% =
16. 16.775 decreased by 8% =
17. 17.695 increased by 20% =
18. 18.252 increased by 75% =
19. 19.140 increased by 40% =
20. 20.770 decreased by 60% =
21. 21.710 decreased by 60% =
22. 22.250 increased by 12% =
23. 23.720 increased by 30% =
24. 24.290 increased by 30% =
25. 25.532 decreased by 25% =
26. 26.360 increased by 15% =
27. 27.42 increased by 50% =
28. 28.212 decreased by 25% =
29. 29.75 decreased by 8% =
30. 30.540 increased by 15% =
31. 31.540 increased by 35% =
32. 32.620 increased by 35% =
33. 33.140 increased by 35% =
34. 34.310 increased by 20% =
35. 35.550 increased by 12% =
36. 36.600 decreased by 5% =
37. 37.480 decreased by 40% =
38. 38.745 increased by 20% =
39. 39.544 increased by 75% =
40. 40.350 decreased by 10% =

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