Answer :
so 516=
so 5 hundreds=4hundreds+1 hundred
the tens is 1+10 so 11 since 11 10's =110 and 4 hundreds and 11 tens=5 hundreds and 1 ten
the ones are ok since they are both 6
so blank=11
so 5 hundreds=4hundreds+1 hundred
the tens is 1+10 so 11 since 11 10's =110 and 4 hundreds and 11 tens=5 hundreds and 1 ten
the ones are ok since they are both 6
so blank=11