Answer :
To solve the equation [tex]182 + 218 - 1[/tex], we can follow these steps:
Add 182 and 218 together:
[tex]182 + 218 = 400[/tex]
First, we add these two numbers. You can do this by adding the digits from right to left, carrying over if necessary:
- Units place: [tex]2 + 8 = 10[/tex], write down 0 and carry over 1.
- Tens place: [tex]8 + 1 + 1 = 10[/tex], write down 0 and carry over 1.
- Hundreds place: [tex]1 + 2 + 1 = 4[/tex].
So, [tex]182 + 218 = 400[/tex].
Subtract 1 from the result:
[tex]400 - 1 = 399[/tex]
Simply take away 1 from 400 to get the result.
Therefore, the missing number is [tex]399[/tex].