generating)equivalent)expressions) itemsappearoncalculatorandnoncalculatorsessions...
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Generating Equivalent Expressions Items appear on Calculator and Non Calculator Sessions
1. Which expressions below are equivalent to
2 2𝑥 + 1 ? Select all that apply. A. 4𝑥 + 2 B. 2 1 + 2𝑥 C. 2 2𝑥 + 1 D. 2𝑥 + 1 + 2𝑥 + 1 E. 𝑥 + 𝑥 + 𝑥 + 𝑥 + 1 + 1
2. Mario has read two less than four times the number of books Tonya has read. What factored expression represents the number of books, x, Mario has read?
A. 4𝑥 + 2 B. 2(𝑥 − 1) C. 4(𝑥 − 2) D. 2(2𝑥 − 1)
3. Shannon says the two expressions below are
equivalent. Is she correct? Explain why or why not? 2(3a – 2) + 4a and 10a – 2
4. Which of the given pairs of expressions are equivalent? Select all that apply.
A. 3𝑧 + 2𝑧 and 5𝑧 B. 8𝑥 − 8𝑥 and 0 C. 9.1 + 4.5𝑎 − 2.5𝑎 and 11.1𝑎 D. −7𝑦 3 − 3 and 0 E. 𝑦 − 6 3 and 𝑦 − 18
5. Which expressions are equivalent to 6𝑥𝑦 + 9𝑥𝑦 −
18𝑦? Select all that apply. A. 3(2𝑥𝑦 + 3𝑥𝑦 − 6𝑦) B. 3𝑦(2𝑥 + 3𝑥 − 6) C. 3𝑥(2𝑦 + 3𝑦 − 6) D. 𝑥𝑦(5 − 6𝑦) E. 3𝑦(5𝑥 − 6) F. 𝑦 15𝑥 − 18
6. Which of the equations shows an application of the Zero Property of Multiplication?
A. !!𝑏 + 0 = !
!𝑏
B. !!3𝑦 = 𝑦
C. 0 ∙ !!= 0
D. !!𝑚 − 2 − !
!𝑚 + 3 = −5
7. Write an expression in simplest form that
represents the sum of (2𝑥 − 5𝑦) and 𝑥 + 𝑦 .
8. What is the greatest common factor of the terms 24xy and 42x?
9. Rewrite the expression below as the sum of one
constant and one variable term.
2 𝑥 − 4 + 6𝑥 − 5𝑥 ∙ 3
10. Factor the following expression:
16𝑥 + 20
11. Ms. Johnson asked her class to write an equivalent expression to
14𝑑 − 9 + 21𝑘 − 7𝑑𝑘 + 2 • Riley wrote the expression
7𝑑𝑘 2 − 3 − 1 − 7
• Ahmad wrote the expression 7 2𝑑 + 3𝑘 − 𝑑𝑘 − 7
• Ariana wrote the expression
7𝑘 2𝑑 − 3 − 𝑑 − 7 Who is correct? Explain how you know.
12. Which expression is equivalent to the expression given below?
2 𝑥 − 3 + 4𝑥 + 3
A. 6𝑥 B. 6𝑥 − 3 C. 3𝑥 D. −2𝑥 + 3