Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 666 · 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. 1.250 decreased by 8% =
2. 2.200 increased by 5% =
3. 3.260 increased by 5% =
4. 4.112 increased by 75% =
5. 5.680 increased by 15% =
6. 6.320 decreased by 15% =
7. 7.280 decreased by 20% =
8. 8.520 decreased by 30% =
9. 9.680 decreased by 35% =
10. 10.720 decreased by 40% =
11. 11.800 increased by 35% =
12. 12.125 decreased by 20% =
13. 13.392 decreased by 50% =
14. 14.260 decreased by 15% =
15. 15.55 increased by 40% =
16. 16.575 decreased by 8% =
17. 17.325 increased by 8% =
18. 18.390 increased by 10% =
19. 19.50 increased by 8% =
20. 20.300 decreased by 15% =
21. 21.720 decreased by 25% =
22. 22.650 increased by 8% =
23. 23.678 decreased by 50% =
24. 24.410 increased by 50% =
25. 25.258 increased by 50% =
26. 26.525 increased by 8% =
27. 27.580 increased by 5% =
28. 28.770 decreased by 10% =
29. 29.580 decreased by 15% =
30. 30.480 decreased by 25% =
31. 31.774 increased by 50% =
32. 32.620 decreased by 5% =
33. 33.238 increased by 50% =
34. 34.420 decreased by 35% =
35. 35.240 increased by 30% =
36. 36.520 increased by 35% =
37. 37.750 increased by 10% =
38. 38.540 increased by 15% =
39. 39.438 increased by 50% =
40. 40.260 decreased by 35% =

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