Addition & Subtraction Problem Solving (Math TEKs 3.4A & 3.5A)

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

If you have 25 apples and you buy 15 more, how many apples do you have in total?

Back

25 + 15 = 40 apples.

Front

If you have 100 candies and you give away 30, how many candies do you have left?

Back

100 - 30 = 70 candies.

Front

What does it mean to solve a word problem?

Back

To solve a word problem means to read the problem carefully, understand what is being asked, and use math to find the answer.

Front

How can you check your addition?

Back

You can check your addition by using subtraction. If you add two numbers and then subtract one of them from the total, you should get the other number.

Front

What is a strip diagram?

Back

A strip diagram is a visual representation of a math problem that shows the relationship between numbers using bars.

Front

If Ms. Robinson had 25 yards of fabric left after making costumes and she started with 167 yards, how much fabric did she use?

Back

167 - 25 = 142 yards of fabric used.

Front

How do you find the total number of items sold?

Back

To find the total number of items sold, subtract the number of items left from the original number of items.

Front

What is the difference between two numbers?

Back

The difference is the result of subtracting one number from another.