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- 1. ORDER OFORDER OF OPERATIONSOPERATIONS NOTES & PRACTICE PROBLEMSNOTES & PRACTICE PROBLEMS Mr.SaucedoMr.Saucedo
- 2. Warm-upWarm-up Do the following three problems on yourDo the following three problems on your journal:journal: 1.1. 3232 ÷ 2÷ 233 + 6+ 6 2.2. 2 + 4 ÷ 2 (4) + 1 + 32 + 4 ÷ 2 (4) + 1 + 3
- 3. ParenthesisParenthesis Example: ( )Example: ( ) They serve to group expressions.They serve to group expressions.
- 4. ExponentsExponents Example: 2Example: 244 They tell how many times the base isThey tell how many times the base is multiplied by itself.multiplied by itself.
- 5. MultiplicationMultiplication Multiplication can be represented in variousMultiplication can be represented in various ways:ways: 2 x 5 = 2(5) = (2)(5) = (2)5 = 22 x 5 = 2(5) = (2)(5) = (2)5 = 2·5·5
- 6. DIVISIONDIVISION Divide something into parts.Divide something into parts. Division can be written with the followingDivision can be written with the following symbols:symbols: - a/b or aa/b or a÷b or _____÷b or _____
- 7. ADDITIONADDITION To increase, to build, to make bigger.To increase, to build, to make bigger. Symbol: +Symbol: +
- 8. SUBTRACTIONSUBTRACTION To reduce, to make smaller.To reduce, to make smaller. Symbol: -Symbol: -
- 9. NOTESNOTES When evaluating a long expression,When evaluating a long expression, solve in the following order:solve in the following order: PP – Parenthesis first– Parenthesis first EE - Exponents- Exponents MM - Multiplication- Multiplication DD - Division- Division AA - Addition- Addition SS - Subtraction- Subtraction
- 10. GUIDED PRACTICEGUIDED PRACTICE Evaluate the following expressions:Evaluate the following expressions: 1. 21. 2 · 3· 322 + 4+ 4 2. (3 / 4)(13 - (2 + 3))2. (3 / 4)(13 - (2 + 3))22
- 11. CHECKPOINTCHECKPOINT EVALUATE:EVALUATE: 1.1. 2727 ÷ 3÷ 322 · 2 – 3· 2 – 3 2.2. 2(30 – (8 + 13))2(30 – (8 + 13)) 3.3. 24 – (324 – (322 +1)+1) 4.4. __9x____9x__ , when x = 4., when x = 4. 3x + 23x + 2
- 12. QUESTIONS??QUESTIONS?? INDEPENDENT WORK:INDEPENDENT WORK: Algebra 1 book, page 10.Algebra 1 book, page 10. Problems: 4, 8, 14, 16, 19, 24, 30, 31.Problems: 4, 8, 14, 16, 19, 24, 30, 31.

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