Maths Flashcards
What is the only even prime number?
2
What is the divisibility rules for 2
Has to be an even number
What is the divisibility rules for 3?
Digits of the number sum to a multiple of 3
What is the divisibility rules for 4?
The last 2 digits have to be a multiple of 4
What is the divisibility rule for 5?
Has to end in 5 or a 0
What is the divisibility rule for 6?
Has to be an even number and a multiple of 3
What is the divisibility rule for 8?
Has to be able to be halved 3 times
What is the divisibility rule for 9?
The digits have to sum up to a multiple of 9
What is the divisibility rule for 10?
Has to end in a 0
4^2 (4 squared:4 to the power of 2)
what is the name of the 2
the index-this indicates the number of times the base is multiplied by itself
4^2 (4 squared:4 to the power of 2)
what is the name of the 4
The base- a number that is multiplied by itself
What is the hcf of 12,18?
6
What are the factor pairs of 14?
1,2,7,14
What is the lcm of 3 and 4?
12
What is the product of primes for 6?
2x3
What is the prime number decomposition of 60?
2^2 x 3 x 5
what is the name of an angle between 181-359 degrees?
a reflex angle
what is the name of an angle between 91-179 degrees?
an obtuse angle
what is the name of an angle at exactly 90 degrees?
a right angle
what is the name of an angle between 1-89 degrees?
acute angle
What is the name of a 180 degree angle?
a straight line
what are supplementary angles?
Pairs of angles that add up to 180 degrees or a straight line
what are vertically opposite angles?
if two angles intersect between each other then they are equal e.g: a and b are equal and c and d are equal
\a/
c/\ d
/b \
what is the sum of angles in a triangle?
180 degrees
