Program: Academy of Math
Subject Strand: Rounding
Objective: Students will round numbers to the nearest given place value.
Materials: Rounding Activity Sheet
Time: 5-10 minutes
50
55
Which number is 53 closer to? 50 or 60
________
Which number is 58 closer to? 50 or 60
________
60
How could you use the number 55 to help you decide whether each number was closer to 50 or 60?
100
150
200
Which number is 125 closer to? 100 or 200 ________
Which number is 172 closer to? 100 or 200 ________
How could you use the number 150 to help you decide whether each number was closer to 100 or 200?
When you round numbers, you are trying to figure out what number the number you are trying to round is closest
to (or what number it is around).
Review with your teacher the rules for rounding.
Circle the number in the given place value.
Underline the number to the right of the circled number.
If the underlined number is less than 5, keep the circled number the same and change all numbers after it to
0. If the underlined number is greater than 5, increase the circled number by 1 and change all numbers after
it to 0.
Round 136 to the nearest hundred.
136
136
100
Use the rules of rounding to fill in the chart below. The first column has been done for you as an example.
Round to
986
Tens
990
Hundreds
1000
Thousands
1000
Ten
thousands
X
Hundred
thousands
X
Millions
X
5,844
32,578
819,726
476,452
5,326,419