Entrance exam for grade 7

Front

What is the solution to the equation x + 12 = -15?

Back

x = -27

Front

Convert 200,000 g to kg.

Back

200 kg

Front

What is a prime number?

Back

A prime number is a number that has only two factors: 1 and itself.

Front

How many pets were surveyed if the answer is 20?

Back

20

Front

Which of the following is a prime number: 1, 37, 63, 33?

Back

37

Front

What is the formula to convert grams to kilograms?

Back

Divide the number of grams by 1000.

Front

What is the definition of an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions.

Front

What does it mean for a number to be even?

Back

An even number is an integer that is exactly divisible by 2.

Front

What is the definition of a factor?

Back

A factor is a number that divides another number without leaving a remainder.

Front

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

Back

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