The image you provided appears to be a worksheet focused on addition facts up to 100. The task involves using known number facts to fill in the missing numbers in bar models or equations. Below, I will explain how to solve the problems step by step.
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Worksheet Breakdown and Solution
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Section 1: Use Number Facts to Fill in the Missing Numbers
This section is not fully visible in the image, but it likely involves basic addition facts. If you can provide more details about this section, I can assist further.
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Section 2: Use Number Facts to Fill in the Missing Numbers
This section provides some examples of addition problems where one of the addends or the sum is missing. Here are the problems and their solutions:
1.
Problem: \( \_\_ + 28 = 100 \)
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Solution: To find the missing number, subtract 28 from 100.
\[
100 - 28 = 72
\]
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Answer: \( 72 + 28 = 100 \)
2.
Problem: \( \_\_ + 33 = 100 \)
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Solution: Subtract 33 from 100.
\[
100 - 33 = 67
\]
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Answer: \( 67 + 33 = 100 \)
3.
Problem: \( \_\_ + 26 = 100 \)
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Solution: Subtract 26 from 100.
\[
100 - 26 = 74
\]
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Answer: \( 74 + 26 = 100 \)
4.
Problem: \( 11 + \_\_ = 100 \)
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Solution: Subtract 11 from 100.
\[
100 - 11 = 89
\]
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Answer: \( 11 + 89 = 100 \)
5.
Problem: \( \_\_ + 41 = 100 \)
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Solution: Subtract 41 from 100.
\[
100 - 41 = 59
\]
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Answer: \( 59 + 41 = 100 \)
6.
Problem: \( \_\_ + 52 = 100 \)
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Solution: Subtract 52 from 100.
\[
100 - 52 = 48
\]
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Answer: \( 48 + 52 = 100 \)
7.
Problem: \( 69 + \_\_ = 100 \)
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Solution: Subtract 69 from 100.
\[
100 - 69 = 31
\]
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Answer: \( 69 + 31 = 100 \)
8.
Problem: \( 7 + \_\_ = 100 \)
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Solution: Subtract 7 from 100.
\[
100 - 7 = 93
\]
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Answer: \( 7 + 93 = 100 \)
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Final Answers
Here are the completed equations:
1. \( 72 + 28 = 100 \)
2. \( 67 + 33 = 100 \)
3. \( 74 + 26 = 100 \)
4. \( 11 + 89 = 100 \)
5. \( 59 + 41 = 100 \)
6. \( 48 + 52 = 100 \)
7. \( 69 + 31 = 100 \)
8. \( 7 + 93 = 100 \)
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Explanation
The key to solving these problems is understanding that addition and subtraction are inverse operations. If you know the sum and one of the addends, you can find the other addend by subtracting the known addend from the sum.
If you have any additional questions or need further clarification, feel free to ask!
Final Answer:
\[
\boxed{72, 67, 74, 89, 59, 48, 31, 93}
\]
Parent Tip: Review the logic above to help your child master the concept of 100 addition facts worksheet.
