To round 3-digit numbers to the nearest ten, use a number line.
Think about the number 437.
Which two multiples of 10 is 437 between?
Hint: We use the digit in the tens place to guide us.
What is 437 rounded to the nearest 10?
Hint: Think about which side of the midpoint 437 will be on.
What is the greatest whole number that when rounded to the nearest ten gives a result of 1 190?
Round to the nearest hundred.
Find two whole numbers with as great a difference as possible where both numbers result in 850 when rounded to the nearest ten.
Round 703 to the nearest hundred.
What is the smallest whole number that when rounded to the nearest ten gives a result of 9 950?