0. Review of Algebra

Insert ∈ or ∉ in each blank to make the resulting statement true. 13 _____ {3, 5, 12, 14}

Find the union of the sets. {1,3,5,7}∪{2,4,6,8,10}

Find each sum or difference. 13 + (-4)

Insert ∈ or ∉ in each blank to make the resulting statement true. 0 _____ {0, 2, 3, 4}

Insert ∈ or ∉ in each blank to make the resulting statement true. 0 _____ {0, 5, 6, 7, 8, 10}

Multiply or divide as indicated. Write answers in lowest terms as needed. (21/8)∙(4/7)

Find each sum or difference. -7/3 + 3/4

Write each number in decimal notation: 7.45*10^(-5)

Find the union of the sets. {e,m,p,t,y} ∪ ∅

Write each number in scientific notation. 3,590,000

List all numbers from the given set that are a. natural numbers, b. whole numbers, c. integers, d. rational numbers, e. irrational numbers, f. real numbers. {-9, -4/5, 0, 0.25, √3, 9.2, √100}