Question

there are 22,456 pine trees in the park. the park workers are going to plant 6,478 more trees this year. how many trees will there be when they are done? compare the numbers using >, <, or =. 30,000 + 3,000 +400+50
overline{quadquadquad} 30,000+ 8,000 + 200 +4
1,385,904overline{quadquadquad}1,384,596

Explanation:

First Sub - Question: Number of Trees in the Park

Step1: Identify the operation

We need to find the total number of trees, so we add the original number of trees and the number of trees to be planted. The original number of trees is 22,456 and the number of trees to be planted is 6,478.

Step2: Perform the addition

\[22456 + 6478=28934\]

Step1: Calculate the first number

First, calculate \(30000 + 3000+400 + 50\).
\[30000+3000 = 33000\]
\[33000+400=33400\]
\[33400 + 50=33450\]

Step2: Calculate the second number

Next, calculate \(30000+8000 + 200+4\).
\[30000 + 8000=38000\]
\[38000+200 = 38200\]
\[38200+4=38204\]

Step3: Compare the two numbers

Since \(33450<38204\), we have \(30,000 + 3,000+400 + 50<30,000+8,000 + 200+4\)

Step1: Compare digit by digit

Start from the left - most digit. The millions, hundred - thousands, and ten - thousands digits are the same (1, 3, 8 respectively).

Step2: Compare the thousands digit

For 1,385,904, the thousands digit is 5. For 1,384,596, the thousands digit is 4. Since \(5 > 4\), we can conclude that \(1385904>1384596\)

Answer:

28934

Second Sub - Question: Compare \(30,000 + 3,000+400 + 50\) and \(30,000+8,000 + 200+4\)