The image shows a subtraction problem involving 3-digit numbers with regrouping. The task is to solve the subtraction problems and match the correct answers to the performers in a circus-themed activity. Let's solve the given subtraction problems step by step.
Problem 1:
\[
870 - 683
\]
#### Step-by-Step Solution:
1.
Align the numbers:
\[
\begin{array}{c@{}c@{}c}
& 8 & 7 & 0 \\
- & 6 & 8 & 3 \\
\end{array}
\]
2.
Subtract the ones place:
- \(0 - 3\): Since 0 is less than 3, we need to borrow 1 from the tens place.
- Borrowing 1 from the tens place (7 becomes 6), the ones place becomes \(10 - 3 = 7\).
3.
Subtract the tens place:
- After borrowing, the tens place is now 6.
- \(6 - 8\): Since 6 is less than 8, we need to borrow 1 from the hundreds place.
- Borrowing 1 from the hundreds place (8 becomes 7), the tens place becomes \(16 - 8 = 8\).
4.
Subtract the hundreds place:
- After borrowing, the hundreds place is now 7.
- \(7 - 6 = 1\).
5.
Combine the results:
\[
\begin{array}{c@{}c@{}c}
& 1 & 8 & 7 \\
\end{array}
\]
So, the answer is:
\[
870 - 683 = 187
\]
Problem 2:
\[
979 - 485
\]
#### Step-by-Step Solution:
1.
Align the numbers:
\[
\begin{array}{c@{}c@{}c}
& 9 & 7 & 9 \\
- & 4 & 8 & 5 \\
\end{array}
\]
2.
Subtract the ones place:
- \(9 - 5 = 4\).
3.
Subtract the tens place:
- \(7 - 8\): Since 7 is less than 8, we need to borrow 1 from the hundreds place.
- Borrowing 1 from the hundreds place (9 becomes 8), the tens place becomes \(17 - 8 = 9\).
4.
Subtract the hundreds place:
- After borrowing, the hundreds place is now 8.
- \(8 - 4 = 4\).
5.
Combine the results:
\[
\begin{array}{c@{}c@{}c}
& 4 & 9 & 4 \\
\end{array}
\]
So, the answer is:
\[
979 - 485 = 494
\]
Final Answers:
- For \(870 - 683\): The answer is \(187\).
- For \(979 - 485\): The answer is \(494\).
Matching the Answers:
- The performer with the bear has the answer \(187\).
- The performer with the lion has the answer \(216\) (not used in this problem).
- The performer with the girl has the answer \(494\).
Thus, the final answers are:
\[
\boxed{187 \text{ and } 494}
\]
Parent Tip: Review the logic above to help your child master the concept of interactive 3 digit subtraction.
