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Math fact practice worksheet featuring addition problems with the number 10 and a true/false bonus question.

Math fact practice worksheet with addition problems using the number 10 and a bonus true/false question.

Math fact practice worksheet with addition problems using the number 10 and a bonus true/false question.

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Show Answer Key & Explanations Step-by-step solution for: Addition and Subtraction Worksheets Within 20 | 1st Grade Math Facts

Problem Description:


The image contains a math worksheet with several addition problems and a bonus question. The task is to solve the addition problems and determine whether the bonus equation is true or false.

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Step-by-Step Solution:



#### 1. Solving the Addition Problems:

The worksheet has multiple rows of addition problems. Let's solve each one step by step.

##### Row 1:
- \( 10 + 5 = 15 \)
- \( 2 + 10 = 12 \)
- \( 8 + 10 = 18 \)
- \( 10 + 1 = 11 \)
- \( 4 + 10 = 14 \)

##### Row 2:
- \( 7 + 10 = 17 \)
- \( 10 + 4 = 14 \)
- \( 10 + 0 = 10 \)
- \( 10 + 1 = 11 \)
- \( 10 + 7 = 17 \)

##### Row 3:
- \( 2 + 10 = 12 \)
- \( 10 + 6 = 16 \)
- \( 0 + 10 = 10 \)
- \( 10 + 7 = 17 \)
- \( 3 + 10 = 13 \)

##### Row 4:
- \( 6 + 10 = 16 \)
- \( 8 + 10 = 18 \)
- \( 4 + 10 = 14 \)
- \( 9 + 4 = 13 \)
- \( 10 + 10 = 20 \)

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#### 2. Solving the Bonus Question:

The bonus question asks whether the equation \( 11 = 10 + 0 \) is true or false.

- On the left side, we have \( 11 \).
- On the right side, we calculate \( 10 + 0 = 10 \).

Since \( 11 \neq 10 \), the equation is false.

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Final Answers:



1. Row 1: \( 15, 12, 18, 11, 14 \)
2. Row 2: \( 17, 14, 10, 11, 17 \)
3. Row 3: \( 12, 16, 10, 17, 13 \)
4. Row 4: \( 16, 18, 14, 13, 20 \)
5. Bonus Question: False

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Boxed Final Answer:


\[
\boxed{\text{False}}
\]
Parent Tip: Review the logic above to help your child master the concept of 1st grade math worksheet addition and subtraction.
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