Problem Description:
The task involves completing number sentences by filling in the missing numbers. A number line is provided as a visual aid to help solve the problems. The goal is to determine the correct number that completes each equation.
Number Sentences:
1. \( 6 + \square = 7 \)
2. \( \square + 1 = 4 \)
3. \( 4 + \square = 8 \)
4. \( \square + 6 = 9 \)
5. \( 5 + \square = 10 \)
6. \( \square + 2 = 6 \)
7. \( 2 + \square = 6 \)
8. \( \square + 4 = 8 \)
9. \( 1 + \square = 5 \)
10. \( \square + 5 = 7 \)
Solution Approach:
We will solve each equation step by step, using basic arithmetic and the number line as a reference.
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####
1. \( 6 + \square = 7 \)
- Start at 6 on the number line.
- Move forward to reach 7.
- The difference is \( 7 - 6 = 1 \).
- Therefore, \( \square = 1 \).
Answer: \( 6 + 1 = 7 \)
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####
2. \( \square + 1 = 4 \)
- Start at 1 on the number line.
- Move backward to find the starting point that leads to 4 when adding 1.
- The number is \( 4 - 1 = 3 \).
- Therefore, \( \square = 3 \).
Answer: \( 3 + 1 = 4 \)
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####
3. \( 4 + \square = 8 \)
- Start at 4 on the number line.
- Move forward to reach 8.
- The difference is \( 8 - 4 = 4 \).
- Therefore, \( \square = 4 \).
Answer: \( 4 + 4 = 8 \)
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4. \( \square + 6 = 9 \)
- Start at 6 on the number line.
- Move backward to find the starting point that leads to 9 when adding 6.
- The number is \( 9 - 6 = 3 \).
- Therefore, \( \square = 3 \).
Answer: \( 3 + 6 = 9 \)
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5. \( 5 + \square = 10 \)
- Start at 5 on the number line.
- Move forward to reach 10.
- The difference is \( 10 - 5 = 5 \).
- Therefore, \( \square = 5 \).
Answer: \( 5 + 5 = 10 \)
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6. \( \square + 2 = 6 \)
- Start at 2 on the number line.
- Move backward to find the starting point that leads to 6 when adding 2.
- The number is \( 6 - 2 = 4 \).
- Therefore, \( \square = 4 \).
Answer: \( 4 + 2 = 6 \)
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7. \( 2 + \square = 6 \)
- Start at 2 on the number line.
- Move forward to reach 6.
- The difference is \( 6 - 2 = 4 \).
- Therefore, \( \square = 4 \).
Answer: \( 2 + 4 = 6 \)
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8. \( \square + 4 = 8 \)
- Start at 4 on the number line.
- Move backward to find the starting point that leads to 8 when adding 4.
- The number is \( 8 - 4 = 4 \).
- Therefore, \( \square = 4 \).
Answer: \( 4 + 4 = 8 \)
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9. \( 1 + \square = 5 \)
- Start at 1 on the number line.
- Move forward to reach 5.
- The difference is \( 5 - 1 = 4 \).
- Therefore, \( \square = 4 \).
Answer: \( 1 + 4 = 5 \)
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10. \( \square + 5 = 7 \)
- Start at 5 on the number line.
- Move backward to find the starting point that leads to 7 when adding 5.
- The number is \( 7 - 5 = 2 \).
- Therefore, \( \square = 2 \).
Answer: \( 2 + 5 = 7 \)
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Final Answers:
1. \( 6 + 1 = 7 \)
2. \( 3 + 1 = 4 \)
3. \( 4 + 4 = 8 \)
4. \( 3 + 6 = 9 \)
5. \( 5 + 5 = 10 \)
6. \( 4 + 2 = 6 \)
7. \( 2 + 4 = 6 \)
8. \( 4 + 4 = 8 \)
9. \( 1 + 4 = 5 \)
10. \( 2 + 5 = 7 \)
Boxed Final Answer:
\[
\boxed{1, 3, 4, 3, 5, 4, 4, 4, 4, 2}
\]
Parent Tip: Review the logic above to help your child master the concept of addition worksheet ks1 free.
