Big Ideas Math: Modeling Real Life, Grade 6
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7. Volumes of Rectangular Prisms
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Exercise 4 Page 329

What operation does more than represent?

Expression: x + 8
Evaluation: 10

Practice makes perfect
We are asked to write an algebraic expression for the given verbal expression. The key phrase in the verbal expression is ... more than ... This indicates that we should add two things in specific order. ... + ...The two terms that we are adding together are a number x and 8. Since the expession says 8 more than a numberx the xnumber should be on the left-hand side of the addition. x + 8 We are also asked to evaluate this expression when x= 2. This means that we should substitute 2 for x in the given expression and then evaluate. Let's do it!
x+8
2+8
10
The evaluation of the expression is 10.