Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 946 · 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. 1.50 decreased by 12% =
2. 2.594 decreased by 50% =
3. 3.280 increased by 15% =
4. 4.380 decreased by 25% =
5. 5.325 increased by 20% =
6. 6.244 decreased by 75% =
7. 7.90 increased by 10% =
8. 8.745 increased by 40% =
9. 9.580 decreased by 25% =
10. 10.450 increased by 8% =
11. 11.210 decreased by 20% =
12. 12.500 decreased by 20% =
13. 13.650 increased by 12% =
14. 14.600 increased by 30% =
15. 15.526 decreased by 50% =
16. 16.500 increased by 15% =
17. 17.300 decreased by 8% =
18. 18.165 increased by 40% =
19. 19.350 increased by 30% =
20. 20.740 decreased by 15% =
21. 21.640 decreased by 10% =
22. 22.540 increased by 35% =
23. 23.600 increased by 12% =
24. 24.180 increased by 15% =
25. 25.575 decreased by 12% =
26. 26.436 increased by 25% =
27. 27.770 decreased by 10% =
28. 28.424 decreased by 75% =
29. 29.390 decreased by 30% =
30. 30.400 increased by 35% =
31. 31.275 decreased by 12% =
32. 32.295 increased by 60% =
33. 33.540 increased by 15% =
34. 34.100 increased by 15% =
35. 35.120 decreased by 15% =
36. 36.800 increased by 5% =
37. 37.340 decreased by 30% =
38. 38.205 increased by 60% =
39. 39.525 increased by 8% =
40. 40.260 decreased by 60% =

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