Guhuriza hamwe imibare

  • 1. (+4)+(+9). 2. (+7)+(+9)

3. (+2)+(+6). 4. (+4)+(+3)

Ibisubizo biraboneka ku mugaragaro

(+4)+(+6):

Muri ibikorwa byo guhuriza hamwe imibare, (-4) + (+7) bizavamo iki?

Ni iyihe mibare mu bikorwa byo guhuriza hamwe ifite igisubizo cyiza?

Muri ibikorwa byo guhuriza hamwe imibare, ni ibihe bintu ugomba kwitondera mu gihe uhuza imibare mibi n'iyi nziza?