Mental Math Multiplication Quiz

What is the first step in quickly multiplying an even number by five?

• Subtract two from the number

• Divide the number by two

• Add five to the number

• Multiply the number by ten

If you have 12 astronauts and need to find out how many are there in total when each is multiplied by five, what is the result?

• 50

• 80

• 60

• 70

When multiplying an odd number by five, what do you do after dividing by two?

• Add five to the result

• Multiply the result by ten

• Divide the result by ten

• Subtract one from the result

What is the result of multiplying 17 by five using the mental math technique?

• 90

• 85

• 80

• 75

What is the result of multiplying 14 by five using the mental math technique?

• 60

• 65

• 70

• 75