Respuesta :
30 tens = 29 tens and 10 ones = 29 tens 9 ones and 10 tenths
so 30 tens - 3 tens 3 tenths =
29 tens 9 ones and 10 tenths - 3 tens 3 tenths
=26 tens 9 ones and 7 tenths
so 30 tens - 3 tens 3 tenths =
29 tens 9 ones and 10 tenths - 3 tens 3 tenths
=26 tens 9 ones and 7 tenths