Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 418 · 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. 1.500 decreased by 40% =
2. 2.460 decreased by 15% =
3. 3.190 increased by 10% =
4. 4.100 increased by 12% =
5. 5.444 decreased by 75% =
6. 6.100 increased by 60% =
7. 7.550 increased by 12% =
8. 8.572 decreased by 25% =
9. 9.320 increased by 10% =
10. 10.180 decreased by 10% =
11. 11.625 increased by 12% =
12. 12.60 decreased by 15% =
13. 13.675 decreased by 12% =
14. 14.540 increased by 35% =
15. 15.210 increased by 40% =
16. 16.200 increased by 15% =
17. 17.770 increased by 30% =
18. 18.340 decreased by 35% =
19. 19.350 decreased by 40% =
20. 20.440 increased by 35% =
21. 21.380 decreased by 5% =
22. 22.700 increased by 12% =
23. 23.75 decreased by 8% =
24. 24.170 increased by 50% =
25. 25.450 decreased by 12% =
26. 26.640 increased by 35% =
27. 27.680 increased by 15% =
28. 28.415 increased by 40% =
29. 29.385 decreased by 60% =
30. 30.540 decreased by 20% =
31. 31.540 increased by 35% =
32. 32.50 decreased by 10% =
33. 33.575 decreased by 12% =
34. 34.740 increased by 35% =
35. 35.200 increased by 15% =
36. 36.240 decreased by 15% =
37. 37.340 increased by 15% =
38. 38.720 decreased by 35% =
39. 39.590 decreased by 10% =
40. 40.130 decreased by 30% =

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