percentage increase/decrease between years, finding averages, comparing values, calculating ratios, and identifying maximum/minimum values. Questions often test your ability to read coordinates accurately and perform quick calculations.
Shortcut Trick #1 - Quick Percentage Change:
For small percentages, use this mental math trick: 10% = 1/10, 20% = 1/5, 25% = 1/4, 33.33% = 1/3, 50% = 1/2. This helps you estimate answers quickly without lengthy calculations