Use benchmarks to estimate each sum or difference.
1. D
2. B
3. C
4. A
5. C
Lacking data to evaluate.
1. To estimate the sum or difference of D, you need to provide additional information or specific values for the calculation.
2. To estimate the sum or difference of B, you also need to provide additional information or specific values for the calculation.
3. To estimate the sum or difference of C, you need to identify the specific values or numbers involved in the calculation.
4. To estimate the sum or difference of A, you need to provide further information or specific values related to the calculation.
5. To estimate the sum or difference of C, you need to provide additional information or specific values for the calculation.