15. Use rounding to estimate the sum. $$ 0.98+0.8+7.49 $$ $$ \begin{array}{ll} ext { A. } 7 & ext { B. } 8 \ ext { C. } 9 & ext { D. } 10\end{array} $$

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15. Use rounding to estimate the sum. $$ 0.98+0.8+7.49 $$ $$ \begin{array}{ll}	ext { A. } 7 & 	ext { B. } 8 \ 	ext { C. } 9 & 	ext { D. } 10\end{array} $$

UpStudy AI · Accepted Answer

To estimate the sum of $$ 0.98 + 0.8 + 7.49 $$ using rounding, follow these steps:

1. **Round Each Number to the Nearest Whole Number:**
   - **0.98** rounds up to **1**.
   - **0.8** rounds up to **1**.
   - **7.49** rounds down to **7**.

2. **Add the Rounded Numbers:**
   $$
   1 + 1 + 7 = 9
   $$

**Therefore, the estimated sum is **9**.

**Answer:**  
**C. 9**
The estimated sum is 9.

Use rounding to estimate the sum.

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