Page 15 - SPARK OF MATH book 4

(1-3) Rounding Numbers.

We round numbers up to estimate the closest number of a
possible answer.

Example: how many students are there in your school? You
may not know the exact number of students, but you can
estimate a close answer.

How can I round

276,341 to the

nearest 10-thousands?

Step 1: find the place that I am rounding to.

Step 2: look at the digit to the right of this place.

Step 3: if the digit is less than 5, leave the digit in
the rounding place as it is.
If the digit is 5 or greater add 1 to the digit in
the rounding place.

Step 4: change the digits to the right of the
rounding place to zeros.

Round the numbers to the underlined place value.

6,302 6,000

1,018

22,356

537,924

400,400

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