Pre-Algebra Test - Middle Term - Khan Academy

• 15 is a multiple of 3

• 3 is a factor of 5

• 5 is a factor of 15

• 5 is a multiple of 3

Prime numbers are numbers with exactly 2 factors. (1 and itself)

Composite numbers have more than 2 factors.

Which of these numbers is NOT composite?

5, 8, 18, 29, 40

Choose all answers that apply:

• 5

• 8

• 18

• 29

• 40

David and Jillian are playing a board game together. Jillian wants to trade her wool cards for David's ore cards. The double number line shows that David will trade 3 ore cards to Jillian for 6 wool cards.

Based on the ratio shown in the double number line, how many wool cards does Jillian need to trade for 4 ore cards?

Vic's favorite cookie recipe uses 250 grams of flour for every 170 grams of butter. Imani made cookies using 750 grams of flour for every 630 grams of butter.

What will Vic think of the amount of butter in Imani's cookies?

Choose 1 answer:

• • Imani's cookies have too much butter.

• • Imani's cookies don't have enough butter.

• • Imani's cookies have the right amount of butter.

Three different golfers played a different number of holes today. Shanika played 9 holes and had a total of 43 strokes. Alicia played 18 holes and had a total of 79 strokes. Rickie played 27 holes and had a total of 123 strokes.

Which golfer had the lowest number of strokes per hole?

• Shakina

• Alicia

• Rickie

What is 25% of 520?

Hint: We can think of 25% as a common fraction

A gumball machine contains 23 green gumballs, 52 red gumballs, 34 blue gumballs, 61 yellow gumballs, and 30 pink gumballs.

What percentage of the gumballs are red?

• 74%

• 26%

• 35%

• 52%

Determine whether each equation is true or false.

Shade the options.