2-55 4-7 82 64-73 8-L8I87 1-33-85 1-5 90 5 10 10 I9747= 23 6 7 19 65737451-53 10 218 5 449 759 2 5 2-3 0.4= 1-24-5 0.5= 22 2 1-25
1 2 1 + 3 1 = 2 1 - 4 1 = 5 2 - 5 1 = 7 4 - 7 1 = 8 7 - 8 3 = 10 1 + 5 2 = 6 5 - 3 2 = 3 1 + 5 1 = 5 4 - 5 2 = 6 1 + 3 1 = 2 1 - 8 1 = 8 3 + 8 3 = 2 1 - 5 1 = 7 4 + 7 3 = 1- 8 7 = 6 5 + 6 5 = 1- 12 5 = 5 3 + 2 1 = 10 9 - 10 3 = 7 5 - 7 5 = 8 3 + 8 5 = 6 1 + 12 7 = 4 1 + 4 3 = 7 3 + 2 1 = 10 9 - 2 1 = 10 9 - 5 3 = 3 2 - 6 1 = 5 4 - 10 3 = 19 7 + 19 11 = 12 5 - 12 1 = 6 5 + 3 1 = 5 1 - 6 1 = 6 1 + 4 1 = 7 1 - 8 1 = 8 1 + 8 1 = 8 3 - 3 1 = 9 5 + 9 4 = 9 5 — 3 1 = 5 4 - 3 2 = 2 1 - 12 5 = 6 5 - 3 2 = 2 1 +0.4= 2 1 -0.5= 0.2+ 10 1 = 8 3 + 2 1 = 9 8 - 3 1 = 5 4 - 3 1 = 6 1 + 8 1 = 5 12 + 3 4 + 1 12 7 10 - 3 8 - 1 8 4 15 + 5 6 1 2 -( 3 4 - 3 8 ) 5 6 -( 1 3 + 3 10 ) 2 3 + 5 6