Building Expressions

Sofia has a bag that contains n counters. Which one is the correct expression if:

"She puts in two more counters"

• n + 2

• n × 2

• n - 2

• n ÷ 2

Tags

CCSS.6.EE.B.6

Sofia has a bag that contains n counters. Which one is the correct expression if:

"She takes out three counters"

• n - 3

• n ÷ 3

• 3n

• 3 - n

Tags

CCSS.6.EE.B.6

Aldo is k years old. Lano is 5 years old older than Aldo. Adam is 2 years younger than Aldo. Fira is four times Aldo's age.

Choose the right expression of Fira's age.

• 2k years old

• 4k years old

• 5-k years old

• 2+k years old

Tags

CCSS.6.EE.B.6

Aldo is k years old. Lano is 5 years old older than Aldo. Adam is 2 years younger than Aldo. Fira is four times Aldo's age.

Write down an expression of Adam's age.

Tags

CCSS.6.EE.B.6

The temperature on Tuesday was t °C.

Which's the right expression when today's temperature is:

Twice as warm as it was on Tuesday.

• 2t °C

• 3t ° C

• ½ ° C

• t ÷ 2 °C

Tags

CCSS.6.EE.B.6

David has x DVDs. He buys six more.

How many DVD's does David now have?

Tags

CCSS.6.EE.B.6

Andien is a years old and Barney is b years old.

What is the total of their age?

Tags

CCSS.6.EE.B.6

Ted can store g photographs on one memory card.

How many photographs can he store on three memory cards of the same size?

Tags

CCSS.6.EE.B.6

The correct algebraic expression of 2×n-3 is..

• 2n - 3

• n2 - 3

• 3 - 2n

Tags

CCSS.6.EE.A.2A

The correct algebraic expression of 3+2×n is..

• 3 + n2

• 3 + 2n

• n2 × 3

Tags

CCSS.6.EE.A.2A