placeholder image to represent content

Combination Formula

Quiz by Mark Dowell Discutido

Philippines Curriculum: Grades K-10 (MELC)

Feel free to use or edit a copy

includes Teacher and Student dashboards

Measure skills
from any curriculum

Tag the questions with any skills you have. Your dashboard will track each student's mastery of each skill.

With a free account, teachers can

edit the questions
save a copy for later
start a class game
automatically assign follow-up activities based on students’ scores
assign as homework
share a link with colleagues
print as a bubble sheet

Q 1/10
Score 0
What is the combination of n objects taken r at a time?
29
$\frac{n!}{r!}$
$\frac{n!}{\left(n-r\right)!}$
$\frac{n!}{r!\left(n+r\right)!}$
$\frac{n!}{r!\left(n-r\right)!}$

Our brand new solo games combine with your quiz, on the same screen

Correct quiz answers unlock more play!

New Quizalize solo game modes

10 questions

Show answers

Q1
What is the combination of n objects taken r at a time?
$\frac{n!}{r!}$
$\frac{n!}{\left(n-r\right)!}$
$\frac{n!}{r!\left(n+r\right)!}$
$\frac{n!}{r!\left(n-r\right)!}$
120s
Q2
120s
Q3
120s
Q4
120s
Q5
120s
Q6
120s
Q7
120s
Q8
120s
Q9
120s
Q10
120s

Teachers give this quiz to your class