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pozinenko2004
@pozinenko2004
July 2022
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а) – 60 : (23 +7·(–3)); б ) 68 · 2,5 – 48 · 2,5;
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Ilinalinaval
А) -60:(23+7*(-3))= - 30
1)7*(-3)= - 21
2) 23+(-21)=2
3) -60:2= - 30
б) 68*2,5-48*2,5=50
1)68*2,5=170
2)48*2,5=120
3)170-120=50
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Answers & Comments
1)7*(-3)= - 21
2) 23+(-21)=2
3) -60:2= - 30
б) 68*2,5-48*2,5=50
1)68*2,5=170
2)48*2,5=120
3)170-120=50