The GCF is 100.
658 rounded to nearest 100 is 700 To round on a digit, look at the next digit to the right, the deciding digit. If this is less than 5, leave the digit alone, otherwise (if it is 5 or more) add one to the digit. Then replace the deciding digit and all the digits to its right by zero. So for 658, rounding on the 100s, the 6 is being rounded, so the deciding digit is the next to the right which is the 5. It is 5 or more, so add one to the 6; replace the deciding digit and all the digits to its right by zero: 658 -> 700.
658.
88 + 658 = 746
658 = 6.58 hundreds
700
700
700
The GCF is 100.
The GCF is 100.
Since 20 is a factor of 700, it is automatically the GCF.
700
The GCF is: 20
The GCF is: 175
The GCF is 70.
The GCF of one number is itself.
Since 70 is a factor of 700, it is automatically the GCF.