Addition and Subtraction Within 20

Front

What is the result of adding 8 and 3?

Back

11

Front

What is the result of subtracting 7 from 14?

Back

7

Front

What is the sum of 15 and 5?

Back

20

Front

What do you get when you add 9 and 4?

Back

13

Front

What is the result of subtracting 8 from 14?

Back

6

Front

What is the definition of addition?

Back

Addition is the mathematical operation of combining two or more numbers to get a total.

Front

What is the definition of subtraction?

Back

Subtraction is the mathematical operation of taking one number away from another.

Front

How do you add by counting on?

Back

To add by counting on, start with the first number and count up the value of the second number.

Front

What is the maximum sum when adding two numbers within 20?

Back

The maximum sum is 20, which occurs when adding 10 and 10.

Front

What is the minimum result of subtracting a number from 10?

Back

The minimum result is 0, which occurs when subtracting 10 from 10.