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# Common Core Standard K.OA.A.3 Questions

Decompose numbers less than or equal to 10 into pairs in more than one way, e.g., by using objects or drawings, and record each decomposition by a drawing or equation (e.g., 5 = 2 + 3 and 5 = 4 + 1).

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Select all that equal 10.
1. 4 + 5
2. 4 + 6
3. 2 + 8
4. 3 + 7
5. 5 + 5
6. 10 + 0
7. 6 + 2
Which adds to the same as $3 + 1?$
1. $2 + 2$
2. $0 + 5$
3. $2 + 4$
4. $4 + 5$
Which adds to the same as $1 + 4?$
1. $2 + 2$
2. $3 + 2$
3. $1 + 2$
4. $3 + 3$
Which adds to the same as $5 + 5?$
1. $0 + 8$
2. $1 + 8$
3. $2 + 8$
4. $3 + 8$
Which adds to the same as $6 + 2?$
1. $1 + 7$
2. $1 + 8$
3. $3 + 3$
4. $3 + 4$
Which adds to the same as $4 + 3?$
1. $5 + 4$
2. $4 + 4$
3. $3 + 5$
4. $2 + 5$
1. $0 + 1$
2. $0 + 2$
3. $0 + 3$
4. $0 + 4$
Which adds to the same as $3 + 6?$
1. $4 + 4$
2. $4 + 5$
3. $4 + 6$
4. $4 + 7$
1. $2 + 3$
2. $2 + 2$
3. $3 + 0$
4. $3 + 1$
1. $1 + 1$
2. $2 + 1$
3. $3 + 1$
4. $4 + 1$