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by BlastRoom
Practice writing prime factorizations and reading simple factor trees.
#us_grade_5_math
40 questions
One question set, multiple game modes. Tap any game to see it in action. Not sure which to pick?
Answer to place stones and capture territory.
Outrun the snow together.
Earn blasts, then hunt the other team.
Answer to earn energy, then climb.
The class blasts through walls together.
Bid on mystery lots. Most money wins.
Sell tours. Nice, standard, or a total scam.
Answer, restock, and serve the rush.
More correct answers pulls the rope your way.
Answer, then shoot down the alien wave.
Answer, then tap to leap the frozen ridge.
What is the prime factorization of 60?
Write the prime factorization of 48.
What is the prime factorization of 75?
Break 84 into prime factors.
What is the prime factorization of 90?
Which expression is the prime factorization of 36?
Find the prime factorization of 64.
What is the prime factorization of 98?
Write 54 as a product of prime factors.
What is the prime factorization of 40?
Choose the prime factorization of 45.
Write the prime factorization of 72.
What is the prime factorization of 100?
Break 30 into prime factors.
Use the factor tree shown. What is the root?
The factor tree has a missing root above its labeled branches. What is the root?
The factor tree shows a missing branch that splits further. What is that branch?
In the factor tree shown, one branch is missing. What is that branch?
A factor tree is shown with its root missing. What number is at the root?
The top of a factor tree has branches 11 and 5. What number is the root?
In a factor tree for 96, one first branch is 12. What other first branch completes 12 x ? = 96?
The tree shows labeled leaves that build a missing root. What root number do those leaves build?
A factor tree is shown with a branch missing. What is the missing branch?
In the displayed factor tree, the root is missing. What is the root?
Is 2 x 9 x 2 the prime factorization of 36? Choose the best reason.
For 72, is 2 x 2 x 2 x 3 x 3 a prime factorization? Choose the best reason.
For 50, is 2 x 5 x 5 a prime factorization? Choose the best reason.
Is 4 x 5 x 5 the prime factorization of 100? Choose the best reason.
Is 2 x 3 x 7 the prime factorization of 84? Choose the best reason.
Is 3 x 5 the prime factorization of 45? Choose the best reason.
Is 2 x 2 x 2 x 11 the prime factorization of 44? Choose the best reason.
Is 5 x 17 the prime factorization of 85? Choose the best reason.
Of 30, 18, 49, and 64, which number has exactly three different prime factors?
Of 12, 18, 20, and 30, which number has three different prime factors?
Which pair shares the prime factor 7: 28 and 35, 18 and 45, 25 and 50, or 32 and 48?
Which pair shares the prime factor 5: 45 and 70, 21 and 63, 16 and 24, or 27 and 81?
A number has prime factorization 2 x 2 x 3 x 7. What is the number?
A number has prime factors 2, 3, and 5, with 2 repeated. What is the number?
Which number has 7 as a prime factor and exactly two different prime factors: 28, 42, 49, or 70?
The prime factorization of a mystery number uses exactly 2, 2, 5, and 5. What is the mystery number?
Crack the passcode before the zombies get in.
Answer, then swat bugs for bonus points.
Race through questions at your own speed.
Same question on every screen. Fastest wins.
Pick a tile, answer, hit bonuses and steals.
Perimeter, Area or Volume: Which Measure?
40 questions
