1.69+7=8.69 2.58-49=-46.42 2.12:6=0.3533333...3 3.45+12=15.45
4.15-4(12+6)=4.15-4x18=4.15-72=-67.85 5.56-12+4-6=-6.44+4-6=-2.44-6=-8.44
6.36+58=64.36 7.36-74(12+81)=7.36-74x93=7.36-6882=-6874.64
Chúc bạn học giỏi !
1.69+7=76 2.58-49=67 2.12:6=4 3.45+12=147
4.15-4(12+6)=1008 5.56-12+4-6=266 6.36+58=274
7.36-74(12+81)=16554