Heath wants to subtract 14-9. What is the best way to decompose 9 to solve this problem?
A. 4 and 5
B. 3 and 6
C. 2 and 7
D. 1 and 8
A. 4 and 5
B. 3 and 6
C. 2 and 7
D. 1 and 8
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1 answer