(c) 75
Locate the
tens column.
75
Check the number to the
right of it.
75
Since it is a 5, we round
75 - 80
â– DO EXERCISES 4 THROUGH 7.
Example 2 Round 7346 to the nearest ten.
Locate the
tens column.
↓
7346
Check the number to the
right of it.
7346
Since it is a 6, we
round
7346 - 7350
â– DO EXERCISES 8 THROUGH 10.
We use a similar rule for rounding to the nearest hundred. We can deter-
mine whether the number in the hundreds column remains the same or in-
creases by one (it never decreases) by looking at the number immediately to
the right of it in the tens column. Finally, we will put zeros in the tens and ones
column.
Example 3 Round the following to the nearest hundred.
(a) 473
Locate the
hundreds column.
↓
473
Check the number to
the right of it.
473
Since it is a 7, we
round
473 - 500
(b) 6549
Locate the
hundreds column.
↓
6549
Check the number to
the right of it.
6549
Since it is a 4, we
round
6549 - 6500
(c) 40,652
Locate the
hundreds column.
↓
40,652
Check the number to
to the right of it.
40,652
Since it is a 5, we
round
40,652 - 40,700
â– DO EXERCISES 11 THROUGH 13.
We use a similar rule to round to the nearest thousand, the nearest ten
thousand, and so on.
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