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Mod3Lesson1
2
Module 3 Lesson 1
Practice
Practice
1. 86 + 75=
2. -14 + 8=
3. 3(9 + 2)=
4. 3(8) + 3(2)=
Objective
Students will calculte to write equailavent expressions by combining like terms.
Calculate
Calculate
Add
Subtract
Multiply
Divide
Equivalent
Equal
Equivalent
Expression
Numbers, symbols and operators (such as + and ×) grouped together that show the value of something.
Expression
Problem A
Write an expression using and that represents the total number of sides in your envelope. Explain what the terms in your expression represent.
Problem A
Answer
Answer
3t + 4q
3 represents the number of a triangle
4 represents the number of a quadrilateral
Example C
Find the sum of -3a + 2 and 5a - 3
Underline the common terms
-3a and 5a
2 and -3
Answer
Answer
2a - 1
Example D
3(2x) + 4y(5)
Example D
Answer
Answer
6x + 20y
(3x2)x + (4x5)y
Homework
Math Packet