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Sagot :
Sure, here is a detailed, step-by-step solution for rounding the given numbers to the nearest tens and hundreds.
### Step-by-Step Solution:
1. Round 7815:
- To the nearest tens:
- Look at the digit in the ones place (5). Since it is 5 or greater, round the tens place up.
- Tens rounded: 7820.
- To the nearest hundreds:
- Look at the digit in the tens place (1). Since it is less than 5, keep the hundreds place the same.
- Hundreds rounded: 7800.
2. Round 5274:
- To the nearest tens:
- Look at the digit in the ones place (4). Since it is less than 5, keep the tens place the same.
- Tens rounded: 5270.
- To the nearest hundreds:
- Look at the digit in the tens place (7). Since it is 5 or greater, round the hundreds place up.
- Hundreds rounded: 5300.
3. Round 8912:
- To the nearest tens:
- Look at the digit in the ones place (2). Since it is less than 5, keep the tens place the same.
- Tens rounded: 8910.
- To the nearest hundreds:
- Look at the digit in the tens place (1). Since it is less than 5, keep the hundreds place the same.
- Hundreds rounded: 8900.
4. Round 6773:
- To the nearest tens:
- Look at the digit in the ones place (3). Since it is less than 5, keep the tens place the same.
- Tens rounded: 6770.
- To the nearest hundreds:
- Look at the digit in the tens place (7). Since it is 5 or greater, round the hundreds place up.
- Hundreds rounded: 6800.
5. Round 9188:
- To the nearest tens:
- Look at the digit in the ones place (8). Since it is 5 or greater, round the tens place up.
- Tens rounded: 9190.
- To the nearest hundreds:
- Look at the digit in the tens place (8). Since it is 5 or greater, round the hundreds place up.
- Hundreds rounded: 9200.
### Results in tabular form:
[tex]\[ \begin{tabular}{|l|l|l|l|} \hline & \textbf{Given} & \textbf{Tens} & \textbf{Hundreds} \\ \hline 1.) & 7815 & 7820 & 7800 \\ \hline 2.) & 5274 & 5270 & 5300 \\ \hline 3.) & 8912 & 8910 & 8900 \\ \hline 4.) & 6773 & 6770 & 6800 \\ \hline 5.) & 9188 & 9190 & 9200 \\ \hline \end{tabular} \][/tex]
### Step-by-Step Solution:
1. Round 7815:
- To the nearest tens:
- Look at the digit in the ones place (5). Since it is 5 or greater, round the tens place up.
- Tens rounded: 7820.
- To the nearest hundreds:
- Look at the digit in the tens place (1). Since it is less than 5, keep the hundreds place the same.
- Hundreds rounded: 7800.
2. Round 5274:
- To the nearest tens:
- Look at the digit in the ones place (4). Since it is less than 5, keep the tens place the same.
- Tens rounded: 5270.
- To the nearest hundreds:
- Look at the digit in the tens place (7). Since it is 5 or greater, round the hundreds place up.
- Hundreds rounded: 5300.
3. Round 8912:
- To the nearest tens:
- Look at the digit in the ones place (2). Since it is less than 5, keep the tens place the same.
- Tens rounded: 8910.
- To the nearest hundreds:
- Look at the digit in the tens place (1). Since it is less than 5, keep the hundreds place the same.
- Hundreds rounded: 8900.
4. Round 6773:
- To the nearest tens:
- Look at the digit in the ones place (3). Since it is less than 5, keep the tens place the same.
- Tens rounded: 6770.
- To the nearest hundreds:
- Look at the digit in the tens place (7). Since it is 5 or greater, round the hundreds place up.
- Hundreds rounded: 6800.
5. Round 9188:
- To the nearest tens:
- Look at the digit in the ones place (8). Since it is 5 or greater, round the tens place up.
- Tens rounded: 9190.
- To the nearest hundreds:
- Look at the digit in the tens place (8). Since it is 5 or greater, round the hundreds place up.
- Hundreds rounded: 9200.
### Results in tabular form:
[tex]\[ \begin{tabular}{|l|l|l|l|} \hline & \textbf{Given} & \textbf{Tens} & \textbf{Hundreds} \\ \hline 1.) & 7815 & 7820 & 7800 \\ \hline 2.) & 5274 & 5270 & 5300 \\ \hline 3.) & 8912 & 8910 & 8900 \\ \hline 4.) & 6773 & 6770 & 6800 \\ \hline 5.) & 9188 & 9190 & 9200 \\ \hline \end{tabular} \][/tex]
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