Multiples
These are first six multiples of 21
What are 21, 42, 63, 84, 105, and 126?
What are the factors of 24?
1, 2, 3, 4, 6, 8, 12, 24
Evaluate:
7 - 3 + 8
7 - 3 +8
=4 + 8
=12
At a party, the cheese pizza is cut into 10 slices and the veggie pizza is cut into 15 slices. If the host wants to serve identical platters that contain the same combination of cheese and veggie slices, with no slices left over, what is the greatest number of platters the host can prepare?
The host can prepare 5 platters. Each platter will have two slices of cheese pizza and 3 slices of veggie pizza.
Write 2 equivalent ratios to 10 / 40.
1/4, 20/80, 30/120...
What are the factors of 17?
1 and 17
15 ÷ 3 x 8
15 ÷ 3 x 8
5 x 8
=40
The lights on Front street aren't well coordinated. The first light is green every 6 minutes. The second is green every 8 minutes. When is the first time they will be green at the same time?
They will be green at the same time after 24 minutes.
There are 10 white marbles and 3 blue marbles. What is the ratio of all marbles to white marbles?
What is
13:10 or 13 to 10
What is the LCM of 7 and 21
21
DAILY DOUBLE!!!
What are the factors of 64?
1, 2, 4, 8, 16. 32. 64
6 + (2 + 3 · 7)
=6 + (2 + 21)
=6 + (23)
=29
The cymbals will play every 8 beats while the triangle will play every 3 beats. When will they play together for the first time?
At 24 beats.
8 out of every 10 tennis balls are yellow. The rest are orange. What is the ratio of orange to yellow tennis balls in simplest form?
1:4, 1 to 4, or
1/4
What is the LCM of 8 and 12
24
What is the greatest common factor of 24 and 36?
20 - (52 - 2 x 5)
20 - (52 - 2 x 5)
=20 - (25 - 2 x 5)
=20 - (25 -10)
=20 - 15
=5
Carly is making trail mix out of 9 cups of nuts and 6 cups of dried fruit. She wants each portion of trail mix to be identical, containing the same combination of nuts and dried fruit, with no ingredients left over. What is is the greatest number of bags she can make using only whole cups of ingredients (NO FRACTIONS)?
Carly can make 3 bags of mix with 3 cups of nuts and 2 cups of dried fruit in each.
What is the missing term that will make these ratios equivalent?
5:15 = 7: ___
21
because 5:15 is equivalent to a 1:3 ratio and 7:21 is also equivalent to a 1:3 ratio.
The GCF of 45 and 63
What is 9
Evaluate:
7(24 + 6 - 33)
7(24 + 6 - 33)
=7(24 + 6 - 27)
=7(30 - 27)
=7·3
=21
Penny tutors students in groups of 11. Meanwhile, John tutors students in groups of 3. While discussing their work, the tutors realize that they both work with the same total number of students. This is the smallest number of students each can have.
What is 33?
This is the speed when you travel 240 miles in 8 hours.
What is 30 miles per hour?