3rd Grade Math Mixed Review

Front

What are factors?

Back

Factors are numbers that can be multiplied together to get another number. For example, the factors of 12 are 1, 2, 3, 4, 6, and 12.

Front

What are multiples?

Back

Multiples are the result of multiplying a number by an integer. For example, the first 5 multiples of 14 are 14, 28, 42, 56, and 70.

Front

What is subtraction?

Back

Subtraction is the process of taking one number away from another. For example, 20,045 - 829 = 19,216.

Front

What is an area model in multiplication?

Back

An area model is a visual way to represent multiplication by breaking numbers into parts. For example, to multiply 45 x 68, you can break it down into 40 and 5, and 60 and 8.

Front

How do you find how many times greater one digit is than another?

Back

To find how many times greater one digit is than another, compare their place values. For example, in 345,234, the first digit 3 is 10,000 times greater than the last digit 3.

Front

What is the first step in solving a subtraction problem?

Back

The first step in solving a subtraction problem is to line up the numbers by their place values.

Front

What is a partial product?

Back

A partial product is the result of multiplying one part of a number by another part. In the area model for 45 x 68, the partial products are 2400, 300, 320, and 40.

Front

What does it mean to 'solve a problem on scrap paper'?

Back

To 'solve a problem on scrap paper' means to do calculations on a separate piece of paper to keep your work organized.

Front

What is the place value of a digit?

Back

The place value of a digit is the value it holds based on its position in a number. For example, in 345, the place value of 3 is 300.

Front

How do you identify factors of a number?

Back

To identify factors of a number, find all the pairs of numbers that multiply together to equal that number.