Video narration
At the school store, you have five dollars to buy a snack. You pick a juice for one dollar and ten cents, and a granola bar for one dollar and twenty-five cents. Buying two things means you add their prices to find the total. Line up dollars with dollars and cents with cents. Keep decimal points lined up, too. A small mistake changes the answer. Ten cents plus twenty-five cents is thirty-five cents. One dollar plus one dollar is two dollars. Your snack costs two dollars and thirty-five cents. You pay with five dollars. To find the money left, subtract the total from the amount you paid. Five dollars and zero cents minus two dollars and thirty-five cents leaves two dollars and sixty-five cents. Check: two dollars and thirty-five cents plus two dollars and sixty-five cents equals five dollars. So you have two dollars and sixty-five cents left.