Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 730 · 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. 1.800 decreased by 15% =
2. 2.180 increased by 60% =
3. 3.350 decreased by 8% =
4. 4.594 increased by 50% =
5. 5.588 increased by 25% =
6. 6.796 increased by 25% =
7. 7.100 increased by 15% =
8. 8.380 decreased by 5% =
9. 9.675 decreased by 12% =
10. 10.355 increased by 60% =
11. 11.570 increased by 10% =
12. 12.468 decreased by 50% =
13. 13.240 decreased by 15% =
14. 14.720 increased by 10% =
15. 15.640 decreased by 15% =
16. 16.460 increased by 5% =
17. 17.660 increased by 5% =
18. 18.420 decreased by 35% =
19. 19.170 decreased by 30% =
20. 20.200 increased by 12% =
21. 21.430 decreased by 30% =
22. 22.600 increased by 12% =
23. 23.420 decreased by 35% =
24. 24.284 increased by 50% =
25. 25.240 decreased by 10% =
26. 26.120 decreased by 35% =
27. 27.524 increased by 25% =
28. 28.200 increased by 10% =
29. 29.600 increased by 15% =
30. 30.105 decreased by 20% =
31. 31.744 increased by 25% =
32. 32.250 decreased by 50% =
33. 33.380 decreased by 15% =
34. 34.165 decreased by 60% =
35. 35.450 increased by 10% =
36. 36.750 increased by 12% =
37. 37.800 decreased by 10% =
38. 38.216 increased by 75% =
39. 39.425 increased by 8% =
40. 40.270 decreased by 10% =

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