Răspuns :
a). 1200+250:50-850=1200+5-850=1205-850=355
b). 230:10x2+675:15-45:9= 23x2+45-5=46+45-5=91-5=86
95-450:90x2=95-5x2=90x2=180
8x15-640:20+12=120-32+12=88-12=76
700:100x36-23x21:7-170=7x36-23x3-170=252-69-170=183-170=13
b). 230:10x2+675:15-45:9= 23x2+45-5=46+45-5=91-5=86
95-450:90x2=95-5x2=90x2=180
8x15-640:20+12=120-32+12=88-12=76
700:100x36-23x21:7-170=7x36-23x3-170=252-69-170=183-170=13