Let's solve each equation step by step by finding the missing number in each blank.
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Left Column:
1.
8 + □ = 9
To find the missing number:
$ 9 - 8 = 1 $
✔ Answer: 1
2.
2 + □ = 4
$ 4 - 2 = 2 $
✔ Answer: 2
3.
□ + 3 = 8
$ 8 - 3 = 5 $
✔ Answer: 5
4.
6 + □ = 7
$ 7 - 6 = 1 $
✔ Answer: 1
5.
□ + 4 = 6
$ 6 - 4 = 2 $
✔ Answer: 2
6.
3 + □ = 5
$ 5 - 3 = 2 $
✔ Answer: 2
7.
□ + 9 = 9
$ 9 - 9 = 0 $
✔ Answer: 0
8.
1 + □ = 3
$ 3 - 1 = 2 $
✔ Answer: 2
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Right Column:
1.
1 + □ = 6
$ 6 - 1 = 5 $
✔ Answer: 5
2.
□ + 1 = 10
$ 10 - 1 = 9 $
✔ Answer: 9
3.
4 + □ = 9
$ 9 - 4 = 5 $
✔ Answer: 5
4.
□ + 2 = 3
$ 3 - 2 = 1 $
✔ Answer: 1
5.
□ + 6 = 10
$ 10 - 6 = 4 $
✔ Answer: 4
6.
8 + □ = 9
$ 9 - 8 = 1 $
✔ Answer: 1
7.
□ + 6 = 9
$ 9 - 6 = 3 $
✔ Answer: 3
8.
2 + □ = 8
$ 8 - 2 = 6 $
✔ Answer: 6
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✔ Final Answers:
####
Left Column:
1. 8 +
1 = 9
2. 2 +
2 = 4
3.
5 + 3 = 8
4. 6 +
1 = 7
5.
2 + 4 = 6
6. 3 +
2 = 5
7.
0 + 9 = 9
8. 1 +
2 = 3
####
Right Column:
1. 1 +
5 = 6
2.
9 + 1 = 10
3. 4 +
5 = 9
4.
1 + 2 = 3
5.
4 + 6 = 10
6. 8 +
1 = 9
7.
3 + 6 = 9
8. 2 +
6 = 8
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🟩 Summary:
All blanks are filled using simple subtraction:
Missing number = Total – Known number
This is a great exercise for practicing basic addition and subtraction facts!
Parent Tip: Review the logic above to help your child master the concept of addition worksheet for junior.
