Math Test Factors and Multiples

Use mental math to multiply.

• 1,600

• 5X300

• 360

• 60X6

• 27,000

• 3000X9

• 2,800

• 700X4

• 1,500

• 200X8

Tags

CCSS.4.NBT.B.5

List the first 5 multiples of 20

• 1, 2, 4, 5, 10

• 1, 20, 2, 10, 4, 5

• 20, 40, 60, 80, 100

• 20, 25, 30, 35, 40

Find the Greatest Common Factor (GCF) of 60 and 75

Kendra has a math test every 12 school days and a vocabulary test every 9 school days. She had both a math test and a vocabulary test today. The next time she will have both tests on the sam day will be _______ days from now?

List the factors of 12.

• 1, 2, 3, 4, 6, 12

• 12, 24, 36, 48, 60...

• 1, 12, 24, 4, 6

Tags

CCSS.4.OA.B.4

What is the GCF of 18 and 24?

What is the least common multiple (LCM) of 4 and 10?

• 4

• 40

• 15

• 20

What is the least common multiple (LCM) of 15 and 2?

Peter has 18 oranges and 12 bananas. He wants to make fruit baskets with the same number of each fruit in each basket. What is the greatest number of fruit baskets he can make?

Two neon signs are turned on at the same time. Both signs blink as they are turned on. One sign blinks every 9 seconds. The other sign blinks every 15 seconds. In how many seconds will they blink together?