Найдите значения выражений
1.) -5,2 - (2,6 - 5,2) =
2.) 7,4 - (2,4 - 5,5) =
3.) 8,16 + (2/7 - 10,16) =
4.) (3,31 + 5,29) - (3 ,29 - 2,69) =
5.) (4 1/2 + 7 2/7) - (5, 5 + 4 1/7) =
Помогите, очень прошу!
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