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Big Ideas Math: Modeling Real Life, Grade 6

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Big Ideas Math: Modeling Real Life, Grade 6 View details

2. Solving Equations Using Addition or Subtraction

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Exercise 4 Page 256

The word equals divides the sentence into what should be on the left-hand side and what should be on the right-hand side of the equation.

18÷ s=3

Practice makes perfect

We have been given a sentence and we need to translate it into an equation.

18 divided by a number s equals 3.

Every equation has an equals sign and values or expressions on either side of it. Key phrases, such as is, is equal to, and equals tell us about the placement of the equals sign.

18divided by a numbers equals 3. ⇕ 18 divided by a numbers = 3. On the left-hand side we have a key phrase: divided by. This phrase tell us the operations that will be used in our equation. Divided by indicates division. 18 divided by a numbers 18 ÷ s On the right-hand side, we only have a number 3. Putting these sides together, we have a complete equation. 18 ÷ s = 3

Subchapter links

Try It p.252-254

Self-Assessment for Concepts & Skills p.254

Self-Assessment for Problem Solving p.255

Review & Refresh p.256

Concepts, Skills, & Problem Solving p.256-258