This is how you add basic numbers:
1+1 =2
2+2 = 4
4+4 = 8
8+8=16
This is how you subtract basic numbers:
1-1 =0
2-2 = 0
4-4 = 0
8-8=0
This is how you multiply basic numbers:
1*1 =1
2*2 = 4
4*4 = 16
8*8=64