Cách sử dụng
"Round up" is an expression that we use when we want to make a number simpler or easier to work with. For example, if we have a number like 3.2 but we only want to use whole numbers, we can "round up" to 4. This means we round the number to the nearest whole number that is higher than the original number. We can use this expression in many different situations, like when we are calculating costs or measuring ingredients for cooking. It helps us simplify our calculations and make the numbers easier to work with.