Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 949 · 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. 1.376 increased by 50% =
2. 2.350 decreased by 12% =
3. 3.360 decreased by 60% =
4. 4.120 increased by 10% =
5. 5.624 increased by 50% =
6. 6.744 decreased by 25% =
7. 7.800 increased by 20% =
8. 8.575 increased by 8% =
9. 9.750 increased by 20% =
10. 10.240 decreased by 35% =
11. 11.525 decreased by 12% =
12. 12.690 increased by 30% =
13. 13.580 increased by 5% =
14. 14.100 increased by 8% =
15. 15.664 decreased by 50% =
16. 16.780 increased by 5% =
17. 17.636 decreased by 25% =
18. 18.690 decreased by 10% =
19. 19.520 decreased by 35% =
20. 20.484 decreased by 50% =
21. 21.60 decreased by 60% =
22. 22.365 increased by 40% =
23. 23.728 increased by 50% =
24. 24.375 increased by 8% =
25. 25.280 decreased by 5% =
26. 26.300 increased by 35% =
27. 27.380 decreased by 60% =
28. 28.360 decreased by 35% =
29. 29.72 decreased by 75% =
30. 30.144 decreased by 75% =
31. 31.440 decreased by 15% =
32. 32.625 increased by 12% =
33. 33.462 increased by 50% =
34. 34.360 decreased by 30% =
35. 35.550 increased by 8% =
36. 36.784 decreased by 25% =
37. 37.70 increased by 10% =
38. 38.625 decreased by 12% =
39. 39.425 increased by 12% =
40. 40.450 increased by 8% =

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