12-6+9=15 ...................................
74,123-y=40,2
-y=40,2-74,123
-y=-33,923
y=33,923
5,837+4,163+1,234=10 ,000+1,234=11,234
1.)6×5-16/2×3+49=30-24+49=6+49=55.
2) 32/8×4+48/6/2×5=16+20=36.
3) 4×3+24/3+18/2×9=12+8+81=20+81=101.
4) 6×8+23-24÷4=48+23-6=65.
5) 48/6×4+6×9-26=32+54-26=60.
6) 35/7×5+4×7-19= 25+28-19=32