Divisibility Rules

Divisibility Rules

Carroll Diagram- Is a table used to show how number are the same and different.



Another diagram is Venn Diagram. A Venn Diagram shows relationships between groups of number.






Common Factor
-A number that two or more number are divisible by.

eg. 4 is a common factor of 8 and 12.

Find the factors of 24.
- 1, 2,4, 8.
1 x 24 = 24 , 2 x 12 = 24, 4 x 6 =24, 8 x3 =24.
Find the factors of 32.
1, 2, 4, 8,
1 x 32 = 32 , 2 x 16 = 32, 4 x 8 =32, 8 x 3 =32.
Find the common factors of 24 and 32
- is 8.
8 x 3 =24, 8 x 4 =32.

ansers for homework book pages

Answer to Michael's question


Q)Bob has a spinner with four colours: blue, orange, green, and red. He also has a die with 6 sides with the number 1,2,3,4,5,6. He needs to get P(blue,4) to win a bet with his friend jimmie. What is the sample space?

Use a table or a tree diagram to answer these two questions.


Answer) B1, B2, B3, B4, B5, B6, O1, O2, O3, O4, O5, O6,
G1, G2, G3, G4, G5, G6, R1, R2, R3, R4, R5 ,R6

Answer to Samantha's question.

Q:a blue marble, a pink marble, two green marbles, an orange marble, and two purple marbles. Chance of getting a green marble on the first try then get a green or orange marble on the second try.

A:1st try: 2:5
2nd try: 3:7

Answer to Camille's question

Question:

There's 6 pencil crayons in a box. It has 1 blue, 1 green, 1 yellow, 1 red, 1 orange, and 1 pink. what is the probability of him getting a yellow pencil crayon?

Answer:

Here is a video to help you!

Bob has a spinner with four colours: blue, orange, green, and red. He also has a die with 6 sides with the number 1,2,3,4,5,6. He needs to get P(blue,4) to win a bet with his friend jimmie. What is the sample space?

Use a table or a tree diagram to answer these two questions.

Answer to Joey's question

Q) Kyle needs to roll a p(6) to win the game.
What are the chances of Kyle rolling a 6?

Answer
1\6 1:6 16%

Because there are 6 sides to a dice, and there is only one 6.