Chapter 4 - Decimals - 4.1 Reading and Writing Decimal Numbers - 4.1 Exercises - Page 271: 54

a) $$ 86.06$$ b) $$.86$$

For the first number, there is an "and," so we know that the number is equal to 86 plus 6 hundredths. Thus, the number is: a) $$ 86.06$$ For the second number, there is no "and," so we know the entire number is a decimal. Thus, the number is: b) $$.86$$