Podziel pisemnie:
210:0,75=
155:0,2=
0,4*(siedem piątych - jedna druga) - jedna piąta=
210:0,75=280.
155:0,2=775.
0,4· (7/5₋1/2)-1/5= 0,4·0,36-0,2=0,16
Pozdrawiam :)
280
----------------------
21000:75
-150
--------
600
-600
00
775
---------------
1550:2
-14
---------
15
------------
10
-10
-------
4/10*(14/10-5/10)-2/10=4/10*9/10-2/10=36/10-2/10=34/10=3,4
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210:0,75=280.
155:0,2=775.
0,4· (7/5₋1/2)-1/5= 0,4·0,36-0,2=0,16
Pozdrawiam :)
280
----------------------
21000:75
-150
--------
600
-600
--------
00
775
---------------
1550:2
-14
---------
15
-14
------------
10
-10
-------
00
4/10*(14/10-5/10)-2/10=4/10*9/10-2/10=36/10-2/10=34/10=3,4