Post on 02-Jan-2016
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