Bridges Unit 1 Review Grade 4

Front

What are the factors of 13?

Back

1, 13

Front

Which of these numbers is composite: 13, 37, 25, 11?

Back

25

Front

If I have 180 toothpicks and Katie has k toothpicks, which equation represents that I have 4 times as many toothpicks as Katie?

Back

4 x k = 180

Front

In an array with an area of 56 and one dimension of 7, what is the missing dimension?

Back

8

Front

Which number is composite: 35, 13, 17?

Back

35

Front

What is a composite number?

Back

A composite number is a positive integer that has at least one positive divisor other than one or itself.

Front

What is a prime number?

Back

A prime number is a natural number greater than 1 that cannot be formed by multiplying two smaller natural numbers.

Front

What is the area of a rectangle?

Back

Area = length x width.

Front

If the area of a rectangle is 24 and the length is 6, what is the width?

Back

4 (since 6 x 4 = 24).

Front

What does it mean to factor a number?

Back

To factor a number means to break it down into numbers that can be multiplied together to get the original number.