Ответ:
Пошаговое объяснение:
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1) 210+260+390+140=1000
2) 75+7275+2425+225=10000
3) 23622+23522+38378+14478=100000
4) 12298+12198+16302+9202=50000
1. -5 1/2:11/32=-11/2*32/11=-16<br />2. 17 1/3*(-5 4/13) =52/3*(-69/13)=-92<br />3. -92*25/38=-900/19<br />4. -16-(-47 7/19)=-16+47 7/19 =31 7/19
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