Unit 1 – Day 4

Place Value and Estimation

Place Value – How to name digits

12345.67Ones

Tens

Hundreds

Ten Thousands

Thousands

Tenths

Hundredths

Name the place value for each digit

65, 908.43 5 0 8 9 4 3

Thousands Tens Ones Hundreds Tenths Hundredths

Name the place value for each digit

34, 279.01 9 7 1 4 0 2

Ones Tens Hundredths Thousands Tenths Hundreds

Name the digit in each place value

79, 504. 23 9 0 4 5 3 2

Thousands Tens Ones Hundreds Hundredths Tenths

Rounding to a place value Ex: Round to the nearest tenth 3.478

Look at the digit to the right of the place

If it is 5 or higher, round upIf not, stay3. 478

Since 7 is greater than 5, we round up 3.5

Ex: Round to underlined place value

1) 580

2) 45.3

3) 230

4) 123

5) 900

1) 5782) 45.3293) 234.994) 122.985) 851