Simplifying Numerical Expressions Reteach Review

Think - Pair - Share What is the first step in solving the following? 21 ÷ 3 + 8 2

Objective I can create and simplify numerical expressions.

Essential Questions What is the Order of Operations? Why is it important to apply the order of operations when solving numerical expressions? What is an exponent? How do you calculate a value containing an exponent?

Solve 8 3 512

Which is the same as 5 ? 4 5 • 4 4 • 4 • 4 • 4 • 4 4 • 5 5 • 5 • 5 • 5

Solve the following expression (3-1) + (4+2) 3 2 44

Evaluate the following expression and tell whether it’s true or false. 63 ÷ 32 + 12 = 33 - 10 False

Which expression has a value of 5 45 ÷ 5 - 24 2 x (18-42) + 3 37 - 4(3+5) 32 - (7+2) + 4

Write an equivalent expression for 3 • 3 • 3 •3 34

What would make this equation true? 9y = y 9 If y is 0

Solve for x x = 5 - 3 3 2 116

Write an equivalent expression for 7 3 7 • 7 • 7

Write an equivalent expression for (4-1) • (4-1) • (4-1) - (3+2) • (3+2) (4-1)3 - (3+2)2

What would make this equation false? 5n = n 5

Solve (5 - 4) ÷ (4 - 9) 2 2 3

How would you solve the following expression? Closure How would you solve the following expression? 9 + 4 • 3 2