A recipe uses 3.7 cups of one mixture and 0.25 cups of another. Enter the total number of cups.

Explication

Aligning the decimal points gives 3.70 + 0.25 = 3.95, so the total is 3.95 cups. The result 3.32 comes from right-aligning the written digits and combining tenths with hundredths as if they shared a place.