Writing, Comparing, and Rounding Decimals Section (not in the book)

Vocabulary None

Know your place values! __ __ __ . __ __ __ __ __ Ten Thousandths Hundreds Tens Ones Tenths Hundredths Thousandths Thousandths Hundred - ALL place values after the decimal end with ‘ths’!

Can you write/ say the number? Twenty-one and sixty-seven hundredths Five and thirty-four thousandths 2.504 105,000.15

Comparing Decimals Step 1: line up the decimals Step 1b: add ‘0’ as place holders Step 2: start with the highest place value, then go down

>, <, or = 4.529 vs. 45.29 85.099 vs. 85.0990 12.481 vs. 12.089 687.1 vs. 9.9999 108.098 vs. 108.1

Rounding Step 1: Identify the place value you are rounding to. (underline it!) Step 2: Look, ONLY, at the number to the right of that place value. Step 3: If that digit is: 0-4, the underlined number stays the same. 5-9, the underlined number increases by one.

Practice Round 45.05891 to the nearest hundredths. Round 7.04829 to the nearest tenth. Round 15.9999 to the nearest thousandths. *Important: there must be a digit on the place value you round to, and NO digit after that place value.

Worksheet Rounding & writing decimals Comparing decimals Homework Worksheet Rounding & writing decimals Comparing decimals Comparing numbers in different situations