Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 696 · 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 35% =
2. 2.780 increased by 35% =
3. 3.84 decreased by 75% =
4. 4.150 decreased by 12% =
5. 5.500 increased by 10% =
6. 6.648 increased by 75% =
7. 7.780 decreased by 15% =
8. 8.260 increased by 15% =
9. 9.800 decreased by 60% =
10. 10.460 decreased by 60% =
11. 11.600 increased by 5% =
12. 12.225 decreased by 8% =
13. 13.728 decreased by 50% =
14. 14.560 increased by 15% =
15. 15.180 decreased by 30% =
16. 16.360 decreased by 15% =
17. 17.280 increased by 35% =
18. 18.180 increased by 15% =
19. 19.260 increased by 35% =
20. 20.600 increased by 35% =
21. 21.400 decreased by 60% =
22. 22.795 increased by 40% =
23. 23.490 increased by 10% =
24. 24.400 increased by 8% =
25. 25.620 increased by 75% =
26. 26.525 increased by 8% =
27. 27.90 increased by 60% =
28. 28.790 decreased by 40% =
29. 29.520 decreased by 5% =
30. 30.200 decreased by 8% =
31. 31.520 decreased by 5% =
32. 32.184 increased by 25% =
33. 33.140 increased by 10% =
34. 34.320 increased by 5% =
35. 35.570 increased by 10% =
36. 36.395 increased by 40% =
37. 37.315 increased by 20% =
38. 38.106 increased by 50% =
39. 39.404 increased by 25% =
40. 40.480 increased by 5% =

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