Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 813 · 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. 1.700 decreased by 60% =
2. 2.700 increased by 5% =
3. 3.800 increased by 8% =
4. 4.312 decreased by 50% =
5. 5.600 increased by 60% =
6. 6.400 decreased by 30% =
7. 7.140 decreased by 15% =
8. 8.576 increased by 25% =
9. 9.280 decreased by 30% =
10. 10.490 decreased by 30% =
11. 11.360 increased by 5% =
12. 12.250 increased by 8% =
13. 13.320 increased by 35% =
14. 14.550 decreased by 8% =
15. 15.180 increased by 5% =
16. 16.760 decreased by 25% =
17. 17.800 decreased by 8% =
18. 18.340 decreased by 15% =
19. 19.760 decreased by 35% =
20. 20.300 increased by 35% =
21. 21.690 decreased by 20% =
22. 22.685 increased by 40% =
23. 23.580 increased by 15% =
24. 24.440 decreased by 10% =
25. 25.300 increased by 8% =
26. 26.280 increased by 5% =
27. 27.320 increased by 40% =
28. 28.340 increased by 35% =
29. 29.100 increased by 12% =
30. 30.660 decreased by 10% =
31. 31.140 decreased by 15% =
32. 32.80 increased by 60% =
33. 33.725 decreased by 12% =
34. 34.100 decreased by 5% =
35. 35.540 decreased by 15% =
36. 36.40 increased by 20% =
37. 37.280 decreased by 75% =
38. 38.625 increased by 12% =
39. 39.680 decreased by 5% =
40. 40.580 decreased by 20% =

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