1. 0+0= = = 6.9-0= = = = 8.9-1=
1. 0+0= = = 6.9-0= = 7.9+1= = 8.9-1=
Contoh Soal 1 : 11+1 =
Contoh Soal 2 : 11+2 = = = 1 Soal 2 selesai.
Contoh Soal 3 : 11+9 = = = Soal 3 selesai. 1+ 2
Contoh Soal 4 : 11-1 = =0 1
Contoh Soal 5 : 11-2 = , hasilnya kurang dari =9 Pinjam ke kiri 1 Sisanya 1-1=0 0