Evaluate $35000+45000$35000+45000 by doing the following.
Fill in the box with the missing number.
$35000=30000+\editable{}$35000=30000+
Fill in the box with the missing number.
$45000=\editable{}+5000$45000=+5000
Using the results from the previous parts, evaluate $35000+45000$35000+45000.
Evaluate $10400+10600$10400+10600 by doing the following.
Using regrouping, evaluate $50025+30025$50025+30025.
Using regrouping, evaluate $42500+17500$42500+17500.