Unit 4 Review

If the pattern below continues, how many squares would be in the 5^th row?

Row 1             □  □    

Row 2         □  □  □   □

Row 3   □   □   □  □   □   □

Row 4

Row 5

(a)  

Mya used a rule to make the number pattern shown below.

120, 108, 96, 84

Which could be the rule he used to make this pattern?

Conner is playing a card game with 3 of his friends. There are 52 cards that he will divide equally between all 4 players and writes the equation 52 ÷ 4 = c.

What does the c represent in the equation?

There are some tables in Ms. Delk’s room. Each table can seat 5 students. What does the t represent in the expression t(5)?

Select each statement that describes a variable that is true.

Abigail went roller skating for the same number of miles 7 days in a row. At the end of the 7 days, Abigail had roller skated 21 miles. Which equation can be used to calculate the number of miles Abigail skated each day?

Mrs. Wakefield and Mrs. Rivers have 5 math club teams. Each team has 4 kids. Which number sentence could be used to find k, the number of kids participating in math club?

Phoebe lost 9 rocks from her rock collection. Her rock collection now has 32 rocks. Which number sentence could be used to find r, the number of rocks she originally had before she lost some?

Erin weighs 4 pounds less than Dana. If p represents Dana’s weight in pounds, which expression below represents Erin’s weight in pounds?