3.OA.8

Front

What is addition?

Back

Addition is the process of finding the total or sum by combining two or more numbers.

Front

What is subtraction?

Back

Subtraction is the process of taking one number away from another to find the difference.

Front

What is multiplication?

Back

Multiplication is the process of adding a number to itself a certain number of times.

Front

What is division?

Back

Division is the process of splitting a number into equal parts or groups.

Front

What does the symbol '+' mean?

Back

The '+' symbol means to add two or more numbers together.

Front

What does the symbol '-' mean?

Back

The '-' symbol means to subtract one number from another.

Front

What does the symbol '×' mean?

Back

The '×' symbol means to multiply two numbers.

Front

What does the symbol '÷' mean?

Back

The '÷' symbol means to divide one number by another.

Front

If Oliver bought 3 books and 7 books, how do you find the total number of books he bought?

Back

You add the two numbers: 3 + 7 = 10.

Front

If Debby had 9 quarters and spent 4, how do you find out how many she has left?

Back

You subtract the spent quarters from the total: 9 - 4 = 5.