Odpowiedź:
a)
-5 5/8+(-2 5/16)= -5 10/16 - 2 5/16 = -7 15/16
b) 6,9-7,43= -0,53
c) -8,02+5,7= -2,32
d) 10,24+(-17 1/2)= 10,24-17,5= -7,26
Szczegółowe wyjaśnienie:
Odpowiedź:
a)
[tex] - 5 \frac{5}{8} + ( - 2 \frac{5}{16} ) = - 5 \frac{10}{16} - 2 \frac{5}{16} = - 7 \frac{15}{16} [/tex]
b)
[tex]6.9 - 7.43 = 6.9 - (6.9 + 0.53) = 6.9 - 6.9 - 0.53 = - 0.53[/tex]
c)
[tex] - 8.02 + 5.7 = 5.7 - 8.02 = 5.7 - (5.7 + 2.32) = 5.7 - 5.7 - 2.32 = - 2.32[/tex]
d)
[tex]10.24 + ( - 17 \frac{1}{2} ) = 10.24 + ( - 17.5) = 10.24 - 17.5 = 10.24 - (10.24 + 7.26) = 10.24 - 10.24 - 7.26 = - 7.26[/tex]
