7TH GRADE 6.1 CHECK UNDERSTANDING

SARAH BUYS 8 PACKAGES, EACH WITH 20 BALLOONS, AND USES 1/4 OF THEM TO DECORATE THE HALL.

WRITE AN EXPRESSION TO FIND HOW MANY BALLOONS SARAH HAS LEFT:

WRITE THIS EXPRESSION DOWN FOR THE NEXT PROBLEM!

• 8(20) + (1/4)(8)(20)

• 8(20) - (1/4)(8)(20)

• (1/4)(8)(20) - 8(20)

• (1/4)(8)(20) + 8(20)

SARAH BUYS 8 PACKAGES, EACH WITH 20 BALLOONS, AND USES 1/4 OF THEM TO DECORATE THE HALL.

HOW MANY BALLOONS DOES SARAH HAVE LEFT?:

• 160

• 120

• 80

• 40

SUREST HAS 4 COUPON BOOKS, EACH WITH 6 COUPONS.

HE KEEPS 1/3 OF THE COUPONS AND GIVES THE REST AWAY.

50% OF THOSE HE KEEPS ARE FOR THE MOVIE THEATER.

WRITE AN EXPRESSION TO SHOW HOW MANY MOVIE THEATER COUPONS SUREST HAS:

WRITE THE EXPRESSION DOWN FOR THE NEXT PROBLEM!

• None of these will work

SUREST HAS 4 COUPON BOOKS, EACH WITH 6 COUPONS.

HE KEEPS 1/3 OF THE COUPONS AND GIVES THE REST AWAY.

50% OF THOSE HE KEEPS ARE FOR THE MOVIE THEATER.

HOW MANY MOVIE THEATER COUPONS DOES SUREST HAVE?

Liu Tse is 6 years older than four times the age of her daughter Lan.

Lan will be 9 years old in 3 years.

WRITE AN EXPRESSION THAT SHOWS LAN'S AGE:

• 3 - 9

• 9 - 3

• 9(3)

• 3(9)

Liu Tse is 6 years older than four times the age of her daughter Lan.

Lan will be 9 years old in 3 years.

HOW OLD IS LAN?:

• 12

• 3

• 6

• Cannot determine with the information given

Liu Tse is 6 years older than four times the age of her daughter Lan.

Lan will be 9 years old in 3 years.

USE LAN'S AGE TO WRITE AN EXPRESSION FOR LIU TSE'S AGE:

• 6(6) - 4

• 4(6) - 6

• 6(6) + 4

• 4(6) + 6

Liu Tse is 6 years older than four times the age of her daughter Lan.

Lan will be 9 years old in 3 years.

WHAT IS LIU TSE'S AGE?:

• 32

• 18

• 40

• 30

• 1/3 (18)
• 18
• (.50)(18) + 3
• 1/4 (18)
• 1/3 (.50)(18)
• 3(18)
• 1/3 (3)