If there are 10 balls and 6 are red and 4 are blue, what percent is blue? Show your work!
10 x 0.4
= 40%
If you have 3 oranges and 5 apples, what is your ratio of oranges to apples?
Bonus: What is your ration of oranges to total pieces of fruit?
3 to 5 or 3:5 or 3/5
Bonus:
3 to 8 or 3:8 or 3/8
What is the prime factorization of 15 and is it a perfect square?
15
3 x 5
No
Find the square root of 25.
5
If Ms. Olson paints 14 pictures in a week, what is the rate she is painting pictures per day?
14 pictures/7 days = 2 pics/day
Your sister has $100 in her savings at the bank, she accrues 3% interest a year. How much money does she earn in interest over the year?
$100 x 0.03 = $3
3 out of 18 students who show up to class believe Mrs. Cooluris will read more than a paragraph from The Slight Edge. Write a fraction to represent those odds.
3/18 = 1/6
What is the prime factorization of 9 and is it a perfect square?
9
3 x 3
Yes
Find the square root of 0.
1
Save-On Foods has a sale of two bags of Hardbite chips for $6. What is the rate per bag and is it a good deal?
$6/2bags = $3/bag
Heck yes...but not a great deal.
Represent 50% as a fraction
Various answers:
1/2, 2/4, 3/6, 4/8, 5/10...etc
Fill in the three blanks in the top number line.
3/8 , 5/8 , 8/8 = 1
What is the prime factorization of 24 and is it a perfect square?
24
4 x 6
2 x 2 x 2 x 3
No
Find the square root of 100.
10
An orca swims 110km in 2 hours. What is its rate?
110km/2hr = 55km/hr
Determine 115% of 60
70 x 1.15 = 80.5
Diana and John are making three-cheese lasagna. The recipe calls for 100 g of Romano, 300 g of mozzarella, and 250 g of cottage cheese. Write a ratio in lowest terms to compare the amounts of the three cheeses. State the order of the cheeses.
100 Romano : 300 Mozza : 250 Cottage
divide all three by 50
2 Romano : 6 Mozza : 5 Cottage
What is the prime factorization of 81 and is it a perfect square?
81
9 x 9
3 x 3 x 3 x 3
Yes
Find the square root of 900.
30
A hockey player cheers on the bench every 3 minutes right after her shift. How many times does she cheer in an hour?
60min/3min = 20 intervals
She cheers 20 times in an hour if her timing is perfect.
If you improved yourself 1% a day, after 360 days, what would be your percent improvement?
100% x 3.60= 360%
or
A = P(1 +r)t
The ratio of the width to the length of the Canadian flag is 1 : 2
The flag on the cover of an atlas is 12 cm wide. How long is it?
1/2 = 12/n
n x 1 = 12 x 2
n = 24cm
What is the prime factorization of 121 and is it a perfect square?
121
11 x 11
Yes
Find the square root of 256.
16
Mrs. Cooluris' kids find a flyer for Smart Sweets. The say it is $12/box that has 5 bags at Costco but they can get a bag of watermelon slice Smart Sweets for $2.75 a bag at Nature's Fare on sale this week. Which is the better deal and why?
$12/5 bags = $2.40 per bag
Costco is a better deal if you like Swedish fish style or Peach Rings...or if you just don't care what kind because $2.40 is less than $2.75
Nature's Fare is better if you like Watermelon slice because their normal price everywhere is $3.65-4.99 per bag normally.