Perimeter
If the length of a rectangle is 4 and the width is 7, what is the perimeter?
4+4+7+7 = 22
or 2 x (4+7) = 22
If the length of a rectangle is 4 and the width is 7, what is the area?
4x7 = 28
32 x 2 =
Rewrite it
32
x 2
________
6 4
What are the factors of the number 6?
Is this a prime or composite number?
1, 2, 3, 6
Composite
What is a formula for perimeter?
What is the formula for area?
LXW
2 5 1
× 3
______
753
Carry those numbers
The factors of 19 are:
and is it prime or composite
1, 19
Prime
If a square has a width of 4, what is the length?
4! It's a square so ALL SIDES are the same :)
What is the area of Maria's tablet if the width is 2 inches and the length is 9 inches?
2x9 = 18in squared
500 x 3 =
Drop zeros
5x3 = 15
Put zeros back on
1500
Is 3 a factor of 84?
84 divided by 3 =
So yes!
Jakob is helping his uncle build a fence around their corn crops. If the length of the corn field is 10 feet and the width of the corn field is 8 feet, how much fence material will Jakob and his uncle need to buy?
2x(10+8) =36 feet of fence material
or 10+8+10+8 = 36
If a swimming pool is 8 feet wide and 10 feet long, what is the area of the swimming pool?
10x8 = 80 feet squared
Is 3 tens X 3 tens = 90?
30x30=
900
No
Is 4 a factor of 92?
92 divided by 4 =
If the perimeter of a basketball court is 28 feet and the width of the court is 4, what would the length be?
2 times (L + 4)
2 times what is 28? 2 times 14 is 28 so the length has to be 10
If the area of a shark tank is 35 feet squared and the width of the tank is 5 feet, what is the length?
5x____= 35?
7 = L
In one month, Charlie read 814 pages. In the same month, his mom read 4 times as many pages as Charlie, and that was 143 pages more than Charlie’s dad read. What was the total number of pages read by Charlie and his parents?
Charle 814
Mom 4x814 = 3,256
Dad 3,256-143 = 3,113
814+3,256+3,113 = 7,183
Any number that has 9 as a factor also has 3 as a factor.
TRUE or FALSE?
9 will always be 3X3, so anything with 9 as a factor will also have 3