(1) 8−17 = (2) 9−13 =
(3) 6−8 = (4) 5−11 =
(5) 3−7 = (6) 3−12 =
(7) 40−135 = (8) 20−86 =
(9) 71−138 = (10) 86−1072 =
(11) 526−1321 = (12) 143−1126 =
(13) 0−7 = (14) 74−120 =
(15) 51−69 = (16) 70−110 =
(1) 8−17 =
− 9
(2) 9−13 =− 4
(3) 6−8 =
− 2
(4) 5−11 =− 6
(5) 3−7 =
− 4
(6) 3−12 =− 9
(7) 40−135 =
− 95
(8) 20−86 =− 66
(9) 71−138 =
− 67
(10) 86−1072 =− 986
(11) 526−1321 =
− 795
(12) 143−1126 =− 983
(13) 0−7 =
− 7
(14) 74−120 =− 46
(15) 51−69 =
− 18
(16) 70−110 =− 40
(1) 7−8 = (2) 8−9 =
(3) 1−5 = (4) 4−5 =
(5) 7−11 = (6) 2−3 =
(7) 69−147 = (8) 89−106 =
(9) 44−97 = (10) 235−1043 =
(11) 537−957 = (12) 354−1340 =
(13) 0−98 = (14) 10−101 =
(15) 13−63 = (16) 43−83 =
(1) 7−8 =
− 1
(2) 8−9 =− 1
(3) 1−5 =
− 4
(4) 4−5 =− 1
(5) 7−11 =
− 4
(6) 2−3 =− 1
(7) 69−147 =
− 78
(8) 89−106 =− 17
(9) 44−97 =
− 53
(10) 235−1043 =− 808
(11) 537−957 =
− 420
(12) 354−1340 =− 986
(13) 0−98 =
− 98
(14) 10−101 =− 91
(15) 13−63 =
− 50
(16) 43−83 =− 40
(1) 6−10 = (2) 8−17 =
(3) 9−17 = (4) 3−6 =
(5) 3−4 = (6) 9−11 =
(7) 10−27 = (8) 39−109 =
(9) 28−36 = (10) 723−868 =
(11) 654−699 = (12) 612−728 =
(13) 0−76 = (14) 66−140 =
(15) 39−121 = (16) 32−50 =
(1) 6−10 =
− 4
(2) 8−17 =− 9
(3) 9−17 =
− 8
(4) 3−6 =− 3
(5) 3−4 =
− 1
(6) 9−11 =− 2
(7) 10−27 =
− 17
(8) 39−109 =− 70
(9) 28−36 =
− 8
(10) 723−868 =− 145
(11) 654−699 =
− 45
(12) 612−728 =− 116
(13) 0−76 =
− 76
(14) 66−140 =− 74
(15) 39−121 =
− 82
(16) 32−50 =− 18
(1) 2−3 = (2) 7−11 =
(3) 3−9 = (4) 3−10 =
(5) 4−12 = (6) 5−11 =
(7) 92−188 = (8) 80−151 =
(9) 1−5 = (10) 477−723 =
(11) 728−1183 = (12) 119−946 =
(13) 0−23 = (14) 68−133 =
(15) 95−111 = (16) 18−90 =
(1) 2−3 =
− 1
(2) 7−11 =− 4
(3) 3−9 =
− 6
(4) 3−10 =− 7
(5) 4−12 =
− 8
(6) 5−11 =− 6
(7) 92−188 =
− 96
(8) 80−151 =− 71
(9) 1−5 =
− 4
(10) 477−723 =− 246
(11) 728−1183 =
− 455
(12) 119−946 =− 827
(13) 0−23 =
− 23
(14) 68−133 =− 65
(15) 95−111 =
− 16
(16) 18−90 =− 72
(1) 9−16 = (2) 6−10 =
(3) 8−17 = (4) 1−10 =
(5) 1−9 = (6) 8−9 =
(7) 47−120 = (8) 31−36 =
(9) 56−89 = (10) 385−1239 =
(11) 330−1218 = (12) 757−940 =
(13) 0−54 = (14) 97−185 =
(15) 72−136 = (16) 32−44 =
(1) 9−16 =
− 7
(2) 6−10 =− 4
(3) 8−17 =
− 9
(4) 1−10 =− 9
(5) 1−9 =
− 8
(6) 8−9 =− 1
(7) 47−120 =
− 73
(8) 31−36 =− 5
(9) 56−89 =
− 33
(10) 385−1239 =− 854
(11) 330−1218 =
− 888
(12) 757−940 =− 183
(13) 0−54 =
− 54
(14) 97−185 =− 88
(15) 72−136 =