Here's the first part . . .
.: Problem Four :.
I programmed my computer to print the integers from 1 to 1,000,000.
However, my printer was defective and printed a square instead of the numeral 1.
For example, was printed as
1. Immediately after the integer 100 (that is ) had been printed,
a) How many squares were printed altogether?
* .20 numbers were altered, but there were 21 squares.
. .(11 had two squares.)
As noted in part (a), 20 numbers were altered.b) How many of the 100 integers was printed correctly? Explain.
Therefore, 80 were printed correctly.