같은 식 찾기

Daniel Math Academy · Grade 7 Math

Identify Equivalent Expressions

Skill O.6 · Expressions · ★★☆ Medium · Quarter 2

Name

 

Date

 

Score/ 4

Scan for answers

Choose every expression that is equivalent. There may be more than one.

1. 1
   Which are equivalent to $-3(n-3)-5n$? (A) $-8n-9$ (B) $-8n+9$ (C) $-8n+11$ (D) $n$
2. 2
   Which are equivalent to $5n-10-n+8$? (A) $2(2n-1)$ (B) $2(n-1)+2n$ (C) $-4n-2$ (D) $3n-2$
3. 3
   Which are equivalent to $4k-19-8k+8$? (A) $-4k-11$ (B) $-3k-11$ (C) $-11-4k$ (D) $-15k$
4. 4
   Which are equivalent to $4y+5+4y+3$? (A) $8y-8$ (B) $9y+8$ (C) $16y$ (D) $2(y+4)+6y$

Daniel Math Academy · Grade 7 Math

Answer Key

O.6 Identify Equivalent Expressions · ★★☆ Medium

1. 1B
2. 2A, B
3. 3A, C
4. 4D