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Select the best answer for the question.

11. [tex][tex]$11+1+0.01+0.11+0.111=$[/tex][/tex]

A. 13.23
B. 12.231
C. 12.222
D. 15.21


Sagot :

Sure, let's break down the addition step by step.

1. We start with the whole numbers and the decimals separately for clarity.
2. The whole numbers are 11 and 1. Adding these together:
[tex]\[ 11 + 1 = 12 \][/tex]

3. Next, we deal with the decimal numbers:
[tex]\[ 0.01, 0.11, \text{ and } 0.111 \][/tex]

4. Let's sum these decimal numbers:
[tex]\[ 0.01 + 0.11 = 0.12 \][/tex]
Adding the remaining decimal:
[tex]\[ 0.12 + 0.111 = 0.231 \][/tex]

5. Now, we combine the sum of the whole numbers and the sum of the decimal numbers:
[tex]\[ 12 (whole numbers) + 0.231 (decimals) = 12.231 \][/tex]

Therefore, the best answer to the question [tex]\( 11 + 1 + 0.01 + 0.11 + 0.111 \)[/tex] is:

B. 12.231