Question

4) 4+4+5×(6×6:6-6)+7-8:8×9=foloseste parantezele rotunde si patrate
5) efectueaza:
342:2+20136=
936×24+555:5=
36:6+48:2=
972-123×4=

Answer 1

4+4+5×(6×6:6-6)+7-8:8×9=6  ordinea efectuarii operatiilor
=4+4+5x(36:6-6)+7-1x9=
=8+5x(6-6)+7-9=
=8+5x0+7-9=
=8+0+7-9=
=15-9=
=6

5)
342:2+20136=171+20136=20307
936×24+555:5=12 464+111=12575
36:6+48:2=6+24=30
972-123×4=972-492=480