Ch. 13 Practice Set 2 pages 413-416 #31-56 ODDS

Question 31. $-6+2(9+4)-(5+1)-3(-2)=$  

•  $-20$  

•  $8$  

•  $20$  

•  $31$  

Tags

CCSS.7.NS.A.3

Question 33. If  $x=7$  , what is the value of  $3(x-x^2)$  ? 

•  $-147$  

•  $-126$  

•  $-42$  

•  $126$  

Tags

CCSS.6.EE.A.2C

Question 35. $(3·9+5)-(3·5+9)=$  

•  $-8$  

•  $0$  

•  $8$  

•  $154$  

Tags

CCSS.7.NS.A.2C

Question 37.  Simplify this expression:  $(7+3)^2\div5^2-1\ ·\ 4$ 

•  $-\frac{17}{5}$  

•  $-\frac{8}{5}$  

•  $0$  

•  $12$  

Tags

CCSS.7.NS.A.3

Question 39. Simplify this expression: $8^2\div4+2\ ·\ (10-5)$  

•  $-\frac{7}{3}$  

•  $\frac{32}{7}$  

•  $\frac{8}{3}$  

•  $26$  

Tags

CCSS.7.EE.B.3

Question 41. If  $y=-3$ , then  $y+y^2+(y+y)^2=$   

•  $-36$  

•  $-12$  

•  $42$  

•  $48$  

Tags

CCSS.6.EE.A.2C

Question 43. Simplify this expression $\frac{1}{2}[4x+6(2+2x)]$ 

•  $6x^2$  

•  $8x+6$  

•  $-6x+8x$  

•  $6x+8x$  

Tags

CCSS.6.EE.A.3

Question 45.  $4(3-4x)=$  

•  $3$  

•  $7-8x$  

•  $12-16x$  

•  $28x$  

Tags

CCSS.6.EE.A.3

Question 47. Colin has a pad with x pieces of paper on it. For his first class, he wrote on 5 fewer than half of the pieces of paper in the pad. He used 2 more sheets in his second class than in his first. How many sheets are left for his third class?

• $3$

• $5$

• $8$

• $x-8$

Tags

CCSS.6.EE.B.6

Question 49. Damien, Jake, and Makayla shared a bowl of grapes. Damien ate x grapes. Jake ate 1 more than twice the number of grapes that Damien ate. Makayla ate 5 fewer grapes than Damien ate. If there were 6 grapes left, how many grapes were in the bowl?

• $x-5$

• $x$

• $4x-4$

• $4x+2$

Tags

CCSS.6.EE.B.6