Worksheet on Additions ( Single Digit + Single Digit more than 10 )

Part 1: Number Sequencing & Order

Before performing operations, students must master the flow of numbers.

1. Ascending Order (0 to 10)

Fill in the missing steps as the student “climbs up” the stairs.

0, 1, ___, 3, ___, 5, 6, ___, 8, ___, 10

2. Descending Order (10 to 0)

Fill in the missing numbers as the student “walks down” the stairs.

10, 9, ___, 7, ___, 5, 4, ___, 2, 1, ___

Part 2: Addition Strategies 

Apply specific rules and the “Number Line” method.

3. The Zero Rule

Key Point: Adding zero results in the same number.

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4. Counting On (+1, +2, +3)

Use the number line to jump forward.

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5. Doubling and Near-Doubles

Use the “Doubling” strategy for speed.

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Challenge: If , then _____

Part 3: Subtraction Strategies

Focus on the relationship between numbers and the “Counting Back” method.

6. Subtraction Identities

Note: Subtracting zero leaves the number unchanged; subtracting a number from itself leaves zero.

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7. Stepping Back (-1, -2, -3)

Visualize jumping backward on the number line.

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Part 4: Mastery Check (Fill in the Blanks)

Finding the missing piece of the puzzle.

8. _____ (Tens Compliment)

    

9. _____

    

10. _____ (Hint: Step forward from 4 on the number line)