Task Sets: Understand that rewriting an expression in different forms can shed light on the problem - Common Core Math - Grade 7

1.

A price $p$ increases by 8%. Which expression gives the new price?

A.

$p + 8$

B.

$0.92p$

C.

$1.08p$

D.

$0.08p$

2.

A price $p$ decreases by 20%. Which expression gives the sale price?

A.

$1.20p$

B.

$0.80p$

C.

$p - 20$

D.

$0.20p$

3.

Complete: $x + 0.09x =$ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ $\cdot x$

coefficient:

4.

Factor out the greatest common factor (GCF) from $10y + 4$ . Which expression is the correct result?

A.

$2(5y + 4)$

B.

$5(2y + 4)$

C.

$2(5y + 2)$

D.

$10(y + 4)$

5.

Rewrite $a + 0.15a$ as a single multiplier expression: ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ $\cdot a$

multiplier:

Rewriting Expressions in Equivalent Forms