Решение:
а) |+6 | + | +7l = 6 + 7 = 13;
б) |-9| + |-8l = 9 + 8 = 17;
в) l-6| + | +7l = 6 + 7 = 13;
г) |+8 | + |+9l = 8 + 9 = 17;
а) l-9l - l - 6l = 9 - 6 = 3;
б) l-5 | - |+3l = 5 - 3 = 2;
в) l- 20| - | -6l = 20 - 6 = 14;
г) | - 17| - |-8l = 17 - 8 = 9.
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Решение:
а) |+6 | + | +7l = 6 + 7 = 13;
б) |-9| + |-8l = 9 + 8 = 17;
в) l-6| + | +7l = 6 + 7 = 13;
г) |+8 | + |+9l = 8 + 9 = 17;
а) l-9l - l - 6l = 9 - 6 = 3;
б) l-5 | - |+3l = 5 - 3 = 2;
в) l- 20| - | -6l = 20 - 6 = 14;
г) | - 17| - |-8l = 17 - 8 = 9.