Mental Math Practice

Front

What is the sum of 35 and 40?

Back

75

Front

Calculate 4 multiplied by 6 and then by 50.

Back

1200

Front

What is 20 plus 30?

Back

50

Front

What is 21 divided by 3?

Back

7

Front

What is 53 minus 20?

Back

33

Front

Define mental math.

Back

Mental math refers to performing calculations in your head without the use of calculators or paper.

Front

What is the associative property of addition?

Back

The associative property states that the way in which numbers are grouped in addition does not change their sum.

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac, allowing for the multiplication of a single term across a sum.

Front

What is the difference between a prime number and a composite number?

Back

A prime number has exactly two distinct positive divisors: 1 and itself, while a composite number has more than two positive divisors.

Front

What is the product of 7 and 8?

Back

56