题目
题目
单项选择题

Sometimes, you'll be asked to "round your answer to a specific decimal." To get full marks, it's important to round correctly. Here’s a quick guide: Find the Digit to Round: Figure out which digit you need to round (like the nearest whole number, tenth, or hundredth). Check the Next Digit: Look at the digit just to the right of the one you’re rounding. Rounding Up: If the digit to the right is 5 or higher, increase the rounding digit by 1. Example: Round 47.6867 to two decimal places. Look at the third digit (6). Since it’s higher than 5, round up. 47.6867 becomes 47.69. Rounding Down: If the digit to the right is less than 5, keep the rounding digit the same. Example: Round 47.6349 to two decimal places. Look at the third digit (4). Since it’s less than 5, leave the second decimal unchanged. 47.6349 becomes 47.63. Evaluate 6.858 + 5.797 and round to two decimal places.

选项
A.a. 12.655
B.b. 13
C.c. 12.65
D.d. 12.66
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思路分析
We are asked to evaluate the sum 6.858 + 5.797 and then round the result to two decimal places. Option a: 12.655. This value represents the raw sum to three decimals, not yet rounded to two decimals. If we were to round to two decimals, we wo......Login to view full explanation

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