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MaksimKhmarik
@MaksimKhmarik
May 2023
1
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Срочно с решение сдавать через 20 мин
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talia00
а)-7+9 = (9-7)= 2
б) -7,4-2,9 = -(7,4+2,9)= -10,3
в) -4,1+2,8 = - (4,1-2,8) = -1,3
г) -543+847= (847-543)= 304
д) 8,7-9,4= -(9,4-8,7) = -0,7
е) -3/8 + 5/6 = -9/24 + 20/24 = + (20/24 - 9/24) = 11/24
ж) -3 и 5/9 - 2 и 7/18 = -32/9 - 43/18 = -64/18 - 43/18 = -(64/18+43/18) = - 107/18= -5 и 17/18
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Answers & Comments
б) -7,4-2,9 = -(7,4+2,9)= -10,3
в) -4,1+2,8 = - (4,1-2,8) = -1,3
г) -543+847= (847-543)= 304
д) 8,7-9,4= -(9,4-8,7) = -0,7
е) -3/8 + 5/6 = -9/24 + 20/24 = + (20/24 - 9/24) = 11/24
ж) -3 и 5/9 - 2 и 7/18 = -32/9 - 43/18 = -64/18 - 43/18 = -(64/18+43/18) = - 107/18= -5 и 17/18