11. Nancy biked 2.65 miles in the morning and
    3.19 miles in the afternoon. What total distance
    did she bike?

To find the total distance Nancy biked, simply add the two distances together. So, 2.65 miles in the morning plus 3.19 miles in the afternoon gives you 5.84 miles! Crunching numbers like this helps keep your mind sharp, just like a good bike ride keeps your body healthy!

When adding decimals, it’s handy to line them up by the decimal point to avoid mix-ups. A common mistake is misplacing a digit, especially if rounding is involved. Double-checking your addition can save you from a miscalculation that might end up in a longer bike ride than expected!