Round 1,289 to the nearest 100

Hello!

When you round you look at the number to the right of where you are rounding and look to see what it is

If it is 5 or higher you round up

If it is lower than 5 you keep the number the same

You are rounding to the nearest 100

You look at the hundreds and tens place

1289

You look at the number to the right

Since it is higher than 5 you round the 2 up

The answer is 1300

Hope this helps!

Yes, two vertical lines can be complementary