Math 2-1: Warm-up Evaluate each expression. 8 + (20 – 3)(2) 16 + (-9) 3. -7 – 10 Solve each equation. Check your solution 4. 5.

Math 2-1: Fractions and Decimals Objective: Express rational numbers as decimals and decimals as fractions.

Vocabulary rational number – numbers of the form where a and b are integers and b ≠ 0. terminating decimal – a decimal whose digits end. repeating decimal – a decimal whose digits repeat in groups of one or more. bar notation – in repeating decimals, the line or bar placed over the digits that repeat. 2.636363… =

Vocabulary rational numbers – ie. 1, ½, 0.5 natural numbers {1, 2, 3, …} whole numbers {0, 1, 2, 3, …} integers {… -2, -1, 0, 1, 2, …}

Write a Fraction as a Decimal to express a fraction as a decimal, divide the numerator by the denominator. Write as a decimal. 0.1875 0.75

Write a Mixed Number as a Decimal to express a mixed number as a decimal, take whole number + fraction divided out. Write as a decimal. 1.1875 (terminating decimal) (repeating decimal)

Practice 5. 6. 7. 8.

Write a Terminating Decimal as a Fraction to express a terminating decimal as a fraction, put over 10, 100, etc. Write 0.32 as a fraction. (simplest form) Write – 0.1 as a fraction.

Practice 1. 4. 5. 6.

Write a Repeating Decimal as a Fraction Write as a mixed number. Let Then Subtract ---------------------

Practice

Assignment Pg. 65 (14-36e) Family Activity (ec) – due 9/30