Problem Description:
The task involves solving addition problems where one of the addends is missing. The problems are structured as follows:
- Adding a 2-digit number and a 1-digit number.
- No regrouping (carrying) is required.
- The goal is to find the missing addend in each equation.
Solution Approach:
To solve each problem, we will use basic arithmetic principles:
1.
Identify the given numbers and the sum.
2.
Determine which number is missing (either the first addend or the second addend).
3.
Use subtraction to find the missing addend:
- If the sum and one addend are known, subtract the known addend from the sum to find the missing addend.
Let's solve each problem step by step.
---
Problem 1: `___ + 4 = 46`
- Sum = 46
- Known addend = 4
- Missing addend = \( 46 - 4 = 42 \)
-
Answer: 42
---
Problem 2: `79 + 0 = ___`
- First addend = 79
- Second addend = 0
- Sum = \( 79 + 0 = 79 \)
-
Answer: 79
---
Problem 3: `___ + 8 = 29`
- Sum = 29
- Known addend = 8
- Missing addend = \( 29 - 8 = 21 \)
-
Answer: 21
---
Problem 4: `___ + 5 = 57`
- Sum = 57
- Known addend = 5
- Missing addend = \( 57 - 5 = 52 \)
-
Answer: 52
---
Problem 5: `___ + 3 = 17`
- Sum = 17
- Known addend = 3
- Missing addend = \( 17 - 3 = 14 \)
-
Answer: 14
---
Problem 6: `82 + ___ = 84`
- First addend = 82
- Sum = 84
- Missin
Parent Tip: Review the logic above to help your child master the concept of 2nd grade math practice sheets.
