Rounding means making a number simpler but still close to the real number. You change the number to end in 0, 5, or another easy number.
Rounding is a way to make numbers easier to work with. It's like making the number a little bit different, but still close to the real number.
Examples:
I am rounding the number to the nearest ten.
Rounding makes math easier.
She is rounding the number to the nearest hundred.
Rounding to the nearest dollar is important when shopping.
Rounding to the nearest whole number is like making the number simpler.
Rounding to the nearest ten is like a game!