Oblicz: `21 + 18 =`
Oblicz: `7 + 54 =`
Oblicz: `13 - 8 =`
Oblicz: `32 - 9 =`
Oblicz: `24 + 18 =`
Oblicz: `5 + 7 - 9 =`
Oblicz: `87 + 64 =`
Oblicz: `67 + 28 =`
Oblicz: `504 - 23 =`
Oblicz: `954 - 382 =`