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АВГУСТ30
@АВГУСТ30
July 2022
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Раскройте скобки и найдите значение выражения:
а) 8, 757 - (7,8 - 1,043);
б) 3/8 + (1/8 - 3/4),;
в)
-
( 2,77 - 7 целых 2/9 ) - (0,23 - 4 целых 7/9).
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1401Tamara
Verified answer
а) 8, 757 - (7,8 - 1,043) = 8,757 -7,8 + 1,043=2
б) 3/8 + (1/8 - 3/4) = 3/8 + 1/8 - 3/4 = 4/8 -3/4 = 2/4 - 3/4 = - 1/4
в) - ( 2,77 - 7 целых 2/9 ) - (0,23 - 4 целых 7/9) = (-2,77 - 0,23) + (7 2/9 + 4 7/9)=
= -3 + 11 9/9=-3+12= 9
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Answers & Comments
Verified answer
а) 8, 757 - (7,8 - 1,043) = 8,757 -7,8 + 1,043=2б) 3/8 + (1/8 - 3/4) = 3/8 + 1/8 - 3/4 = 4/8 -3/4 = 2/4 - 3/4 = - 1/4
в) - ( 2,77 - 7 целых 2/9 ) - (0,23 - 4 целых 7/9) = (-2,77 - 0,23) + (7 2/9 + 4 7/9)=
= -3 + 11 9/9=-3+12= 9