Question

40题小数口算

Answer 1

0.88/2=0.44
0.21*2=0.42
2.1/3=0.7
3.2/2=1.6
0.1*0.1=0.01
0.1*0.2=0.02
0.2*0.2=0.04
0.3*0.6=0.18
0.5*0.6=0.3
0.8*0.5=0.4
0.5*0.2=0.1
0.9*0.8=0.72
0.9*0.7=0.63
0.9*0.6=0.54
0.9*0.5=0.45
0.9*0.4=0.36
0.9*0.3=0.27
0.9*0.2=0.18
0.9*0.1=0.09
0.8*0.8=0.64
0.8*0.7=0.56
0.8*0.6=0.48
0.8*0.4=0.32
0.8*0.3=0.24
0.8*0.2=0.16
0.8*0.1=0.08
0.7*0.7=0.49
0.7*0.6=0.42
0.7*0.4=0.28
0.7*0.3=0.21
0.7*0.2=0.14
0.7*0.1=0.07
0.6*0.6=0.36
0.6*0.4=0.24
0.6*0.3=0.18
0.6*0.2=0.12
0.6*0.1=0.06
0.5*0.5=0.25
0.5*0.3=0.15
4.2*1000=4200
2.3-1.3=1