LCM and GCF

LCM

100

What is the LCM of 6 and 15?

30

200

What is the LCM of 8 and 24?

24

300

What is the LCM of 25 and 4

100

400

Which pair of numbers has 60 as LCM? 10 and 6 12 and 30

12 and 30

500

What is the LCM of 2, 6, 8?

24

GCF

100

What is the GCF of 12 and 18?

6

200

What is the GCF of 45 and 60?

15

300

What is the GCF of 48 and 30?

6

400

Which pair of numbers has 8 as GCF? 16 and 36 32 and 24

32 and 24

500

What pairs of numbers have more than one GCF?

None. Every pair or set of numbers has only one GCF

Factors and Multiples

100

Which number is a factor of 18? 10, 9, 36

9

200

Which number is a multiple of 6? 2, 42, 3

42

300

40 is a multiple of which of the following numbers? 8, 120, 80

8

400

Which number is a factor of 111? 9, 11, 3

3

500

How many multiples does 10 have? 4, 100, An infinity

An infinity

Fractions

100

Every 8th student to enter Fronteras each morning gets a flower from Mrs. Hutchins, and every 10th student gets a candy from Miss Shawn. Which student will be the first to get both a rose and a candy? If there are 320 student that come to school that day, how many of them will receive both a flower and a candy?

three fifths

200

How many elevenths do you need to make one whole?

eleven elevenths

300

What are the three "nicknames" (or other names) for a fraction?

Parts of a whole A quotient (division) Ratio

400

Which of the following is equivalent to 15/24? 5/8 or 30/46

5/8

500

Which fraction is greater between 3/4 and 7/8?

7/8

Misc.

100

Sra. Cook is arranging students into groups. She wants to have the same number of boys and girls in each group, and she wants all of the students to be included. If there are 7 boys and 21 girls, what is the largest number of groups she'll be able to make? How many boys and girls will be in each group?

She will be able to make 7 groups of four, with 1 boy and 3 girls in each group.

200

Bridget and Kamryn are dividing packing pens and pencils in pencil boxes. They want to fill as many boxes as possible with 44 pens and 33 pencils. They want to use all of the pencils and pens, and they want the contents of each pencil box to be identical. What is the greatest number of pencil boxes they'll be able to fill? How many pens and pencils will be in each box?

They will be able to fill 11 pencil boxes. There well be 4 pens and 3 pencils in each box.

300

Amaretta goes to the sports center every 12 days, and Kendall goes every 9 days. If they both start attending on the same day, on which day will they both be at the sports center again?

They will go to the sports center on the same day on the 36th day.

400

Every 8th student to enter Fronteras each morning gets a flower from Mrs. Hutchins, and every 10th student gets a candy from Miss Shawn. Which student will be the first to get both a rose and a candy? If there are 320 students that come to school that day, how many of them will receive both a flower and a candy?

The 40th student will receive both Eight students out of 320 will receive both

500

Nate and Owen are having a Barbecue for the middle school. They are purchasing buns and burgers. They want to have exactly the same amount of buns and hamburgers. The hamburger patties come in packages of 12, and buns come in packages of 8. What is the least number of packages of buns and patties they could purchase? How many hamburgers would they be able to make?

They would have to purchase at least two packages of patties and 3 packages of buns. They would be able to make 24 hamburgers with buns.