Numbers Quiz by Bedrock Lessons

What is the LCM of 15, 20, and 25?

• 60

• 70

• 100

• 125

The LCM of two numbers is always:

• Less than or equal to the smaller number

• A multiple of both numbers

• The sum of the two numbers

The HCF of two prime numbers is always:

• 0

• 1

• The smaller of the two numbers

• The larger of the two numbers

What is the HCF of 24 and 36?

• 2

• 6

• 8

• 12

In the International System of Numeration, what is the name of the digit 1 followed by 9 zeros?

• One Billion

• One Trillion

• One Quadrillion

Alex has a rectangular garden measuring 10 meters in length and 5 meters in width. He wants to fence the perimeter of the garden. If the fencing comes in rolls of 5 meters each, how many rolls of fencing does Alex need to buy?

• 5

• 6

• 7

• 8

How many grams are there in 5.3 kilograms?

• 53 g

• 530 g

• 5,300 g

• 53,000 g

How many kilograms are there in 750 grams?

• 0.0075 kilograms

• 0.075 kilograms

• 0.75 kilograms

• 7.5 kilograms

What is the greatest common factor of 36 and 48?

• 6

• 12

• 18

• 24

What is the largest prime number less than 20?

• 16

• 17

• 18

• 19