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
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.