(25-8 3/4)+(13 5/12-2 11/18)-(2 2/9-1 3/4)= 12 7/10-3 1/2-(4 1/2-3 3/4)=
5-9 класс
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(25 - 8 3/4) + (13 5/12 - 2 11/18) - (2 2/9 - 1 3/4) = 9 7/12
1) 25 - 8 3/4 = 24 4/4 - 8 3/4 = 16 1/4
2) 13 5/12 - 2 11/18 = 13 15/36 - 2 22/36 = 12 51/36 - 2 22/36 = 10 29/36
3) 2 2/9 - 1 3/4 = 2 8/36 - 1 27/36 = 1 44/36 - 1 27/36 = 17/36
4) 16 1/4 + 10 29/36 = 16 9/36 + 10 29/36 = 26 38/36 = 27 2/36
5) 27 2/36 - 17/36 = 26 38/36 - 17/36 = 9 21/36 = 9 7/12
12 7/10 - 3 1/2 - (4 1/2 - 3 3/4) = 8 9/20
1) 4 1/2 - 3 3/4 = 4 2/4 - 3 3/4 = 3 6/4 - 3 3/4 = 3/4
2) 12 7/10 - 3 1/2 = 12 7/10 - 3 5/10 = 9 2/10
3) 9 2/10 - 3/4 = 9 4/20 - 15/20 = 8 24/20 - 15/20 = 8 9/20
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выражений.
а) 8 - 3 6/7;
б) 2 1/8 + 3 5/12;
в) 5 13/15 + 1 7/12;
г) 7 3/8 - 3 5/8.
3. Решите уравнение: х - 2 8/15 = 3 7/12.
(-2;2), (-2;-4), (-3;-7), (-1;-7), (1;4), (2;3), (5;3), (7;5), (8;3), (8;-3), (6;-7), (8;-7), (10;-2), (10;1), (11;2,5),(11;0), (12;-2), (9;-7), (11;-7), (14;-2), (13;0), (13;5), (14;6), (11;11), (6;12), (3;12), (1;13), (-3;13), (-4;15),(-5;13), (-7;15), (-8;13), (-10;14), (-9;11), (-12;10), (-13;9),
(-12;8),(-11;9), (-12;8), (-11;8), (-10;7), (-9;8),(-8;7), (-7;8), (-7;7), (-6;7), (-4;5), (-4;-4), (-6;-7), (-4;-7), (-2;-4), глаз (-7;11)