Evaluate this: 6-5x3÷5+1= Order of Operations Main Idea Evaluate expressions using the order of operations.

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Presentation transcript:

1-4 Order of Operations Main Idea Evaluate expressions using the order of operations.

Evaluate this: 6-5x3÷5+1= 4

Order of Operations Evaluate the expressions inside grouping symbols. Example: 3+(4x3) = 3+12 = 15 Evaluate all powers. Example: Multiply and divide in order from left to right. Add and subtract in order from left to right.

Evaluate again using the orders of operations: 6-5x3÷5+1=

6-5x3÷5+1= Step 1. Does not apply because there are no (). powers. Step 3. Multiply 5x3 = 15. Then divide 15 ÷5=3. We are left with: 6-3+1= Step 4. 6-3=3. 3+1=4.

22-3(8-2)+12÷4= Step 1. (8-2)=6 We now have 22-3(6)+12÷4= Step 2. Does not apply. No exponents/powers Step 3. 3(6)=18 and 12÷4=3 We now have 22-18+3 Step 4. Solving Left to right, 22-18=4 and 4+3=7

Activity 1. 14 2. 38 3. 22 4. 5

Problem 1 6+8÷2+2(3-1)=

Problem 2

Problem 3 (6+5)x(8-6)=

Problem 4 45÷(4-1) =