7th Grade Illustrative math Unit 5 Test

Select all the true statements:

• 2.3 + (-2.3) is equal to zero.

• (-3.4) + (-4.5) is positive.

• -2.6 - (-3) is positive.

• 2.5 + (-5) is negative.

• 72 - (-100) is negative.

1. A heron is perched in a tree 50 feet above sea level. Directly below the heron, a pelican is flying 17 feet above sea level. Directly below the birds is a trout, swimming 23 feet below sea level.

• The difference in height between the pelican and the heron is -33 feet.

• The difference in height between the pelican and the heron is 33 feet.

• The distance between the heights of the pelican and heron is -33 feet.

• The difference in height between the pelican and the trout is -40 feet.

• The difference in height between the pelican and the trout is 40 feet.

1. Let x =-8 and y= -4. Which expression has a negative value?

• x + y

• y - x

• (x)(y)

• x/y

What is the value of (-8)(2/3)?

• 16/3

• -16/3

• 2/24

• -2/24

What is the value of (-8)(-2/3)

• -16/3

• 16/3

• 12

• -12

Calculate the Value of the following expression: -18 ÷ -6.

• -3

• -2

• 3

• 2

Calculate the value of the following expression: 18 ÷ -3

• 6

• -6

• 9

• -9

Solve the following Equation: 1/2(a) = 10

• a = 5

• a = 20

• a = -5

• a = -20

Solve the following equation: 12 - b = 14

• b = 2

• b = -2

• b = 10

• b = 0

The table shows transactions from five different bank accounts. What is the transaction amount in account 2?

• - 80

• +80

• 20

• -20