This medium Kindergarten worksheet combines twelve standard addition equations with six missing-addend fill-in problems such as ___ + 3 = 7. Part A reinforces fluency with sums within 10, while Part B introduces part-part-whole thinking by asking children to figure out the unknown number that completes each sentence.
This blended format pushes kindergartners beyond plug-and-chug arithmetic and into early algebraic reasoning, an essential bridge between counting strategies and true number relationships.
Style:
Addition within 10
Part A: Solve the Addition Problems
Add the numbers. Write the answer on the line.
2
+5
3
+6
4
+4
1
+7
5
+5
0
+9
6
+3
7
+2
4
+6
8
+1
3
+7
2
+8
Part B: Fill in the Missing Number
Write the missing number to complete each number sentence.
1. 4 + 3 = 7
2. 5 + 4 = 9
3. 4 + 6 = 10
4. 2 + 6 = 8
5. 4 + 1 = 5
6. 7 + 3 = 10
Addition within 10
★ Part A: Solve the Addition Problems
Add the numbers. Write the answer on the line.
2
+5
3
+6
4
+4
1
+7
5
+5
0
+9
6
+3
7
+2
4
+6
8
+1
3
+7
2
+8
★ Part B: Fill in the Missing Number
Write the missing number to complete each number sentence.
1) 4 + 3 = 7
2) 5 + 4 = 9
3) 4 + 6 = 10
4) 2 + 6 = 8
5) 4 + 1 = 5
6) 7 + 3 = 10
Ready to Practice?
For Part A, add the numbers. For Part B, write the missing number.
18 Questions
15-20 minutes
Auto-graded
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