Enter Title

Factors/Multiples

100

What is the GCF of 48 and 72?

24

200

What is the GCF of 24 and 36?

12

300

What is the GCF of 18 and 42?

a)6

b)3

c)1

d)18

a)6

400

What is the LCM of 15 and 6?

30

500

What is the LCM of 11 and 13?

143

Probability

100

What is the probability of a dice being rolled and the outcome is odd?

1/2

200

What is the probability of a coin being tossed and the outcome is tails?

1/2

300

What is the probability of a number being lower than a 5 when a dice is rolled?

4/6=1/2

400

What is the probability of drawing a heart from a deck of cards?

1/4

500

There are 3 red pens ,2 blue pens and 13 yellow pens. What is the probability of picking a primary color pen?

a)1/2

b)5/18

c)15/18

d)1

d)1

Permutations/ Combinations

100

₄P₂

12

200

₆P₂

30

300

₆P₅

720

400

₆C₂

_{a) 30}

_b)15

_c)120

_d)60

b)15

500

₆C₅

6

Divisibility Rules

100

When is a number divisible by 2?

a)when the last digit is 2

b)when the last digit is 4

c)when the last digit is even

d) when the last digit is odd

c)when the last digit is even

200

When is a number divisible by 5?

When the last digit is five or zero

300

When is a number divisible by 10?

The last digit is zero

400

When is a number divisible by 4?

When the last two digits are divisible by 4

500

When is a number divisible by 8?

When the last three digits are divisible by 8

Operation with sets

100

A set of whole numbers less than 6, greater than 2?

a) U=(2,3,4,5,6)

b) U=(2,3,4,5)

c) U= (3,4,5)

d) U= (3,4)

c) U=(3,4,5)

200

U=(1,2,3,4,5,6,7,8,9)

A=(xlx>5)

B=(xlx is even)

Find A

Find B

A=(6,7,8,9)

B=(2,4,6,8)

300

U=(2,3,4,5,6,7)

A=(xl2<x<6)

B=(xlx is odd)

Find A U B

A U B= (3,4,5,7)

400

U=(2,3,4,5,6,7)

A=(xl2<x<6)

B=(xlx is odd)

Find A n B

(3,5)

500

U=(2,3,4,5,6,7)

A=(xl2<x<6)

B=(xlx is odd)

Find A' and B' and A' n B'

A'= (2,6,7)

B'= (2,4,6)

A' n B'= (2,6)