Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 464 · 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 increased by 25% =
2. 2.730 decreased by 20% =
3. 3.630 decreased by 60% =
4. 4.136 decreased by 25% =
5. 5.740 increased by 75% =
6. 6.324 increased by 75% =
7. 7.140 decreased by 20% =
8. 8.545 decreased by 40% =
9. 9.320 decreased by 5% =
10. 10.580 decreased by 20% =
11. 11.400 decreased by 10% =
12. 12.760 increased by 5% =
13. 13.444 increased by 75% =
14. 14.725 decreased by 12% =
15. 15.710 decreased by 50% =
16. 16.450 increased by 8% =
17. 17.680 decreased by 10% =
18. 18.672 decreased by 75% =
19. 19.750 increased by 12% =
20. 20.80 decreased by 5% =
21. 21.740 decreased by 75% =
22. 22.160 increased by 40% =
23. 23.344 decreased by 75% =
24. 24.380 increased by 5% =
25. 25.260 increased by 75% =
26. 26.102 increased by 50% =
27. 27.724 increased by 25% =
28. 28.712 decreased by 50% =
29. 29.44 decreased by 75% =
30. 30.256 increased by 75% =
31. 31.640 increased by 35% =
32. 32.740 increased by 35% =
33. 33.610 increased by 20% =
34. 34.740 decreased by 15% =
35. 35.280 increased by 35% =
36. 36.600 decreased by 25% =
37. 37.340 decreased by 20% =
38. 38.400 decreased by 8% =
39. 39.410 decreased by 40% =
40. 40.465 increased by 20% =

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