Lesson 4

What is the least common multiple of 3 and 5?

• 9

• 12

• 15

• 18

What is the least common multiple of 4 and 8?

• 4

• 8

• 12

• 16

What is the side length of the smallest square you can create with rectangular tiles that each measure 6 units by 10 units?

• 20 units

• 30 units

• 40 units

• 50 units

What is the least common multiple of 11 and 12?

• 66

• 88

• 110

• 132

What is the prime factorization of 12?

• 2 x 2 x 3

• 2 x 3 x 3

• 2 x 2 x 2

• 3 x 3 x 3

What is the least common multiple of 4 and 11?

• 44

• 22

• 14

• 8

What is the least common multiple of 8 and 12?

• 24

• 16

• 32

• 48

What is the greatest common factor of 8 and 12?

• 4

• 2

• 6

• 8

A shopper wants to buy an equal number of hot dogs and hot dog buns. Each pack of hot dogs has 10 hot dogs, and each pack of hot dog buns has 8 buns. What is the least number of packs of hot dogs and hot dog buns he must buy?

• 3 packs of hot dogs and 4 packs of hot dog buns

• 4 packs of hot dogs and 5 packs of hot dog buns

• 5 packs of hot dogs and 6 packs of hot dog buns

• 6 packs of hot dogs and 7 packs of hot dog buns

Each pack of hot dogs has 10 hot dogs, and each pack of hot dog buns has 8 buns.

If the lunchroom staff buys 6 packs of hot dogs, how many extra hot dogs will they have if they want exactly 60 hot dogs and 60 hot dog buns?

• 2 extra hot dogs

• 4 extra hot dogs

• 6 extra hot dogs

• 8 extra hot dogs