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. For example, 14 is composite because it can be divided by 1, 2, 7, and 14.

Front

What is the value of 3 hundreds in the number 4,384?

Back

3 hundreds is equal to 300. In the number 4,384, there are 3 hundreds (300) and 43 hundreds (4,300). Both Sarah and Meredith are correct in their statements.

Front

What does the equation 18 x 14 = (10 x 14) + (8 x 14) demonstrate?

Back

This equation demonstrates the distributive property of multiplication, which states that a number multiplied by a sum is the same as that number multiplied by each addend and then added together.

Front

What is the product of 18 and 14?

Back

The product of 18 and 14 is 252.

Front

What is the definition of a number line?

Back

A number line is a straight line that represents numbers as points at equal intervals. It is used to visualize the order of numbers and perform operations like addition and subtraction.

Front

What is the difference between an even number and an odd number?

Back

An even number is any integer that is divisible by 2, while an odd number is an integer that is not divisible by 2. For example, 4 is even and 5 is odd.

Front

What is the value of 180 in terms of hundreds, tens, and ones?

Back

180 can be broken down into 1 hundred (100), 8 tens (80), and 0 ones (0).

Front

What is the definition of a prime number?

Back

A prime number is a whole number greater than 1 that has exactly two distinct positive divisors: 1 and itself. For example, 5 is prime because it can only be divided by 1 and 5.

Front

What is the sum of 120 and 60?

Back

The sum of 120 and 60 is 180.

Front

What does it mean to round a number?

Back

Rounding a number means adjusting it to the nearest specified place value, such as the nearest ten or hundred, to make it easier to work with.