Cześć ;-)
Zadanie 1
[tex]a] \ 98-42+7=56+7=63\\\\b] \ 71-26-6=45-6=39\\\\c] \ 54:9\cdot3=6\cdot3=18[/tex]
Zadanie 2
[tex]a] \ 7\cdot8-3\cdot5=56-15=41\\\\b] \ 8\cdot(4+5)=8\cdot9=72\\\\c] \ 7\cdot10+18:3=70+6=76\\\\d] \ 60-4\cdot(8-5)=60-4\cdot3=60-12=48\\\\e] \ 4\cdot(7+5)-15:3=4\cdot12-5=48-5=43[/tex]
Zadanie 3
[tex]a] \ 7^2+7\cdot2=49+14=63\\\\b] \ 8^2+3\cdot2^3=64+3\cdot8=64+24=88[/tex]
Pozdrawiam!
