Subtraction Story Problems.
In this video, we will learn how to find the missing number in subtraction story problems. A subtraction story is a real-life problem. In this problem, you are given four doughnuts. If you gave two of your doughnuts to your friends, how many doughnuts would you have left?
We can solve this problem by writing it as a number sentence. We started with four doughnuts. And we gave two doughnuts to your friends. That means we took away or subtracted two doughnuts. So there are two doughnuts left. Our subtraction story tells us that four take away two equals two. Let’s practice some example questions.
A child had seven marbles in their pocket, but four fell out. How many marbles are left?
The child started with seven marbles in their pocket. Four fell out. So we need to write take away four. How many are left? Three. Seven take away four equals three. If a child has seven marbles in their pocket and four fell out, they would have three marbles left.
A child had six balloons. Two were blown away. How many are left?
The child had six balloons to begin with. Two balloons blew away. So our number sentence would read six take away two equals what. How many balloons are left? There would be four balloons left. A child had six balloons. Two blew away. So there were four left. Six take away two equals four.
In this video, we’ve learned how to find the missing numbers in subtraction story problems.