applied mathematics mental math made easy fast qu
ll: 10% of $68 = $6.80 5% of $68 = $3.40 Total tip = $6.80 + $3.40 = $10.20 Measurement and Conversion Converting units using mental approximations. Estimating areas, volumes, or distances. Example: Converting miles to kilometers: 1 mile ≈ 1.6 km 10 miles ≈ 1