1.2+5=6.2 2.8÷4=0.7
1.05×6=6.3 5÷4=1.25
0×2.6÷50=0 10-2.6-3.4=4
0.25×6=1.5 3.5÷0.7=5
1.25×6×0.8=6 0.24÷0.8=0.3.