Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 6 · 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. 1.262 increased by 50% =
2. 2.60 decreased by 40% =
3. 3.240 increased by 10% =
4. 4.570 increased by 10% =
5. 5.675 increased by 8% =
6. 6.700 increased by 30% =
7. 7.100 decreased by 12% =
8. 8.320 decreased by 35% =
9. 9.360 decreased by 5% =
10. 10.110 decreased by 10% =
11. 11.425 increased by 8% =
12. 12.356 decreased by 25% =
13. 13.792 decreased by 75% =
14. 14.250 increased by 8% =
15. 15.75 decreased by 8% =
16. 16.175 increased by 12% =
17. 17.360 decreased by 15% =
18. 18.320 decreased by 5% =
19. 19.100 decreased by 10% =
20. 20.120 increased by 30% =
21. 21.650 decreased by 8% =
22. 22.425 decreased by 60% =
23. 23.788 increased by 75% =
24. 24.240 increased by 35% =
25. 25.410 decreased by 60% =
26. 26.500 decreased by 35% =
27. 27.95 decreased by 20% =
28. 28.715 increased by 20% =
29. 29.695 increased by 40% =
30. 30.780 decreased by 25% =
31. 31.668 increased by 25% =
32. 32.215 increased by 20% =
33. 33.180 increased by 15% =
34. 34.720 increased by 30% =
35. 35.280 increased by 5% =
36. 36.180 increased by 60% =
37. 37.380 decreased by 35% =
38. 38.172 decreased by 75% =
39. 39.740 decreased by 30% =
40. 40.590 decreased by 10% =

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