Odpowiedź:
4 1/4 + 3/4 = 5
5 3/4 - 1 1/4 = 4 2/4 = 4 1/2
6 3/8 - 2 5/6 = 6 9/24 - 2 20/24 = 5 33/24 - 2 20/24 = 3 13/24
- 4 6/9 + (-8 5/9) = -4 6/9 - 8 5/9 = -12 11/9 = -13 2/9
1 1/4 - 4,5 = 1,25 - 4,5 = -3,25
-10,5 + (-2 1/2) = -10,5 - 2,5 = -13
-746 + (-1598) = -746 - 1598 = -2344
a)
7,8175 ≈ 8
b)
7,8175 ≈ 7,8
c)
7,8175 ≈ 7,82
Szczegółowe wyjaśnienie:
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a) 8
b) 7,8
c)7,82
Odpowiedź:
4 1/4 + 3/4 = 5
5 3/4 - 1 1/4 = 4 2/4 = 4 1/2
6 3/8 - 2 5/6 = 6 9/24 - 2 20/24 = 5 33/24 - 2 20/24 = 3 13/24
- 4 6/9 + (-8 5/9) = -4 6/9 - 8 5/9 = -12 11/9 = -13 2/9
1 1/4 - 4,5 = 1,25 - 4,5 = -3,25
-10,5 + (-2 1/2) = -10,5 - 2,5 = -13
-746 + (-1598) = -746 - 1598 = -2344
a)
7,8175 ≈ 8
b)
7,8175 ≈ 7,8
c)
7,8175 ≈ 7,82
Szczegółowe wyjaśnienie: