Answer :
my teacher always told me keep change and then opposite
so keep -17
change the minus sign to plus sign
and the opposite is postive 9
*-17+9=-8*
Remember different sign you subtract and keep sign of the biggest number
so keep -17
change the minus sign to plus sign
and the opposite is postive 9
*-17+9=-8*
Remember different sign you subtract and keep sign of the biggest number
