Problem Overview:
The worksheet focuses on the
Breaking Down Method for addition. This method involves breaking down numbers into smaller, more manageable parts (usually tens and ones) to simplify the addition process. Let's solve each part of the worksheet step by step.
---
Part 1: Rename the Following Numbers
We need to break down each number into its tens and ones components.
#### Given Numbers:
1.
53
- Tens: 50
- Ones: 3
- Renamed:
50 + 3
2.
28
- Tens: 20
- Ones: 8
- Renamed:
20 + 8
3.
69
- Tens: 60
- Ones: 9
- Renamed:
60 + 9
4.
75
- Tens: 70
- Ones: 5
- Renamed:
70 + 5
5.
36
- Tens: 30
- Ones: 6
- Renamed:
30 + 6
---
Part 2: Calculate the Following Using the Breaking Down Method
We will use the breaking down method to add the given pairs of numbers.
#### Problem 1:
65 + 3 = ?
- Break down
65: 60 + 5
- Add
3 to the ones place:
- 5 + 3 = 8
- Combine the tens and new ones:
- 60 + 8 = 68
Answer: 68
#### Problem 2:
60 + 17 = ?
- Break down
60: 60 + 0
- Break down
17: 10 + 7
- Add the tens:
- 60 + 10 = 70
- Add the ones:
- 0 + 7 = 7
- Combine:
- 70 + 7 = 77
Answer: 77
#### Problem 3:
25 + 45 = ?
- Break down
25: 20 + 5
- Break down
45: 40 + 5
- Add the tens:
- 20 + 40 = 60
- Add the ones:
- 5 + 5 = 10
- Combine:
- 60 + 10 = 70
Answer: 70
#### Problem 4:
66 + 24 = ?
- Break down
66: 60 + 6
- Break down
24: 20 + 4
- Add the tens:
- 60 + 20 = 80
- Add the ones:
- 6 + 4 = 10
- Combine:
- 80 + 10 = 90
Answer: 90
#### Problem 5:
58 + 55 = ?
- Break down
58: 50 + 8
- Break down
55: 50 + 5
- Add the tens:
- 50 + 50 = 100
- Add the ones:
- 8 + 5 = 13
- Combine:
- 100 + 13 = 113
Answer: 113
#### Problem 6:
324 + 72 = ?
- Break down
324: 300 + 20 + 4
- Break down
72: 70 + 2
- Add the hundreds:
- 300 + 0 = 300
- Add the tens:
- 20 + 70 = 90
- Add the ones:
- 4 + 2 = 6
- Combine:
- 300 + 90 + 6 = 396
Answer: 396
---
Final Answers:
1.
Rename the Following Numbers:
- 53:
50 + 3
- 28:
20 + 8
- 69:
60 + 9
- 75:
70 + 5
- 36:
30 + 6
2.
Calculate the Following Using the Breaking Down Method:
- 65 + 3 =
68
- 60 + 17 =
77
- 25 + 45 =
70
- 66 + 24 =
90
- 58 + 55 =
113
- 324 + 72 =
396
---
Boxed Final Answer:
$$
\boxed{
\begin{aligned}
&\text{Rename:} \\
&53: 50 + 3, \quad 28: 20 + 8, \quad 69: 60 + 9, \quad 75: 70 + 5, \quad 36: 30 + 6 \\
&\text{Calculations:} \\
&65 + 3 = 68, \quad 60 + 17 = 77, \quad 25 + 45 = 70, \quad 66 + 24 = 90, \quad 58 + 55 = 113, \quad 324 + 72 = 396
\end{aligned}
}
$$
Parent Tip: Review the logic above to help your child master the concept of breaking apart method worksheet.
