Раскройте скобки и найдите значение выражения

1)9,38 - (-10 + 5,38).

2)-8,76 - (-3,25 - 10,76).

3)-6,19 + (-1,5 + 5,19).

4)-(-21,4 + 12,7) + (-20,4 +12,7).
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