Ответ:
1)77-(45+19)=13
2)(30-9)+21=42
3)34+(58-23)=69
4?
5)324-(49+52)=223
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Ответ:
1)77-(45+19)=13
2)(30-9)+21=42
3)34+(58-23)=69
4?
5)324-(49+52)=223