5.43+1.47=
0.9-0.89=
1.45+5.5=
27×0.01=
7.4+6=
1-0.68=
0.05×6=
10-8.7=
17.8+3.29=
△8-5.86=
36×2.05=
8.18.09 4.054.50 8.66万86600
A.无数
B.0
C.9
D.10个
1.5;0.3;-0.9;-1.6