Addition and Subtraction

Front

What is the sum of 9 and 3?

Back

12

Front

How can you use a fact family to find the sum of 9 and 6?

Back

The fact family shows that 9 + 6 = 15.

Front

What is the result of counting on from 6 by 2?

Back

8

Front

If there are 8 seals on the beach and 5 in the water, how many seals are there in total?

Back

There are 13 seals in total.

Front

What is the result of subtracting 4 from 12 using a number line?

Back

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 finding the difference between two numbers by taking one number away from another.

Front

How does a number line help in addition?

Back

A number line helps visualize the process of adding by moving to the right from the starting number.

Front

How does a number line help in subtraction?

Back

A number line helps visualize the process of subtracting by moving to the left from the starting number.

Front

What is a fact family in mathematics?

Back

A fact family is a group of related addition and subtraction facts that use the same numbers.