4th Grade Bridges Unit 2 Review

Front

What is a composite number?

Back

A composite number is a whole number greater than 1 that has more than two distinct positive divisors, meaning it can be divided evenly by numbers other than 1 and itself. Example: 14 is composite because it can be divided by 1, 2, 7, and 14.

Front

What does it mean to multiply?

Back

Multiplication is a mathematical operation that represents the repeated addition of a number. For example, 4 x 3 means adding 4 three times: 4 + 4 + 4 = 12.

Front

What is the equation to represent Skylah's marbles compared to JC's?

Back

3 x m = 150, where m represents the number of marbles JC has.

Front

What is the product of 16 and 12?

Back

192

Front

What is the product of 40 and 7?

Back

280

Front

What is a factor?

Back

A factor is a number that divides another number without leaving a remainder. For example, 2 and 3 are factors of 6.

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. A composite number has more than two divisors. Example: 5 is prime, while 14 is composite.

Front

What does 'equation' mean in math?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing variables and constants. Example: 2x + 3 = 7.

Front

What is the meaning of 'solve' in math?

Back

To solve means to find the value of a variable that makes an equation true.

Front

What is multiplication?

Back

Multiplication is a mathematical operation used to find the total of one number added to itself a certain number of times.