1.
62+62+15=139
2.
1920+2053=3973
5632-3973=1659
3.
10+17=27 2]27+20=47
4.
48+52=100 200-100=100
5.
264=82=182 305+82=387 387-117=270 182+117=299
1.
62+62+15=139
2.
1920+2053=3973
5632-3973=1659
3.
10+17=27 2]27+20=47
4.
48+52=100 200-100=100
5.
264=82=182 305+82=387 387-117=270 182+117=299