(1)65 -= 36 |
(2)57 += 77
(3)+ 15 = 70 (4)10 += 90
(5)82 += 85
(6)17 += 89 (7)- 39 = 51
(8)- 63 = 21
(9)+ 10 = 79
(1)65 -= 36 |
(2)57 += 77
(3)+ 15 = 70 (4)10 += 90
(5)82 += 85
(6)17 += 89 (7)- 39 = 51
(8)- 63 = 21
(9)+ 10 = 79