Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 704 · 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. 1.745 decreased by 60% =
2. 2.200 decreased by 5% =
3. 3.644 increased by 75% =
4. 4.196 increased by 25% =
5. 5.150 increased by 12% =
6. 6.60 increased by 5% =
7. 7.600 decreased by 12% =
8. 8.140 decreased by 5% =
9. 9.684 decreased by 75% =
10. 10.700 increased by 40% =
11. 11.660 increased by 75% =
12. 12.408 decreased by 25% =
13. 13.200 decreased by 50% =
14. 14.500 increased by 12% =
15. 15.235 decreased by 20% =
16. 16.560 increased by 35% =
17. 17.590 increased by 60% =
18. 18.320 increased by 40% =
19. 19.80 decreased by 60% =
20. 20.700 decreased by 35% =
21. 21.480 decreased by 30% =
22. 22.568 increased by 50% =
23. 23.720 increased by 60% =
24. 24.780 increased by 30% =
25. 25.340 increased by 5% =
26. 26.350 increased by 60% =
27. 27.300 increased by 12% =
28. 28.140 decreased by 50% =
29. 29.700 decreased by 5% =
30. 30.750 increased by 8% =
31. 31.250 increased by 8% =
32. 32.152 decreased by 50% =
33. 33.300 increased by 35% =
34. 34.160 decreased by 60% =
35. 35.505 increased by 40% =
36. 36.504 increased by 25% =
37. 37.90 decreased by 10% =
38. 38.385 increased by 60% =
39. 39.535 increased by 60% =
40. 40.580 increased by 5% =

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