Transcript Pneumatic Project - moniquehitchcock

Students in a grade 7 class were raising money for charity. Some
students had a “bowl-a-thon”.
This table shows the money that one student raised for different
bowling times.
Time (h)
Money
Raised
($)
1
8
2
16
3
24
4
32
5
40
What patterns do you see in the table?
How long would the student have to bowl to
raise $72?
What is meant by “divisibility rules”?
A way to divide numbers quickly by following
a pattern.
Why is it important?
Divisibility rules help us find the factors of a number.
Copy down the following numbers.
78
27
35
410
123 2100 4126 795
Circle the ones that are divisible by 2.
Place a square around the ones that are
divisible by 5.
Draw a triangle around the ones that divisible by 10.
2
3
4
5
6
8
9
10
A number is divisible by…
If the whole number is even
If the sum of the digits is divisible by 3
If the number formed by the last 2 digits is
divisible by 4
If the last digit is a 5 or a 0
If the number is divisible by 3 and is even
If the number is divisible by 4 and the quotient
is even
If the sum of the digits is divisible by 9
If it ends in 0
1) Choose 3 different colors.
2) Using one color, circle the numbers that are
divisible by 2.
3) Using a different color, circle all the numbers that
are divisible by 4.
4) Using your last color, circle all the numbers that
are divisible by 8.
Be able to discuss the following:
Describe the patterns that you found.
Sort the following numbers based on the divisibility rules
for 3 and 5 using both Carroll and Venn Diagrams.
6, 8, 10, 15, 18, 25, 26, 36, 40, 45, 120
Carroll
Diagram
Divisible by
Not
3
Divisible by
3
Divisible by
15 45
10 25 40
5
120
Not
6 36 18
Divisible by
5
8 26
Divisible by 5
10
25
40
8
Divisible by 3
6
15
45
18
36
120
26
Grade 7:
Work on pages 8 then 9 and the Pizazz sheet for final review