Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 156 · 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. 1.610 increased by 50% =
2. 2.448 increased by 75% =
3. 3.425 increased by 8% =
4. 4.375 decreased by 8% =
5. 5.60 increased by 30% =
6. 6.620 increased by 10% =
7. 7.675 decreased by 40% =
8. 8.410 decreased by 40% =
9. 9.300 increased by 5% =
10. 10.95 decreased by 20% =
11. 11.800 increased by 12% =
12. 12.148 increased by 25% =
13. 13.166 decreased by 50% =
14. 14.150 increased by 10% =
15. 15.420 decreased by 60% =
16. 16.155 decreased by 60% =
17. 17.175 decreased by 60% =
18. 18.536 increased by 50% =
19. 19.700 decreased by 12% =
20. 20.220 decreased by 10% =
21. 21.544 decreased by 25% =
22. 22.620 increased by 15% =
23. 23.745 increased by 40% =
24. 24.760 increased by 35% =
25. 25.160 decreased by 10% =
26. 26.356 decreased by 75% =
27. 27.624 increased by 75% =
28. 28.300 increased by 35% =
29. 29.712 increased by 25% =
30. 30.96 decreased by 25% =
31. 31.55 increased by 40% =
32. 32.750 increased by 10% =
33. 33.700 decreased by 8% =
34. 34.45 decreased by 20% =
35. 35.650 decreased by 12% =
36. 36.300 increased by 5% =
37. 37.275 increased by 20% =
38. 38.540 increased by 5% =
39. 39.160 decreased by 35% =
40. 40.160 increased by 20% =

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