验算:
1.06+9.04= 8.6+2.4= 9.93+0.1= 2-0.04=
10-2.3= 52÷4= 24×5= 125×(82-82)=
0.093×100= 0.7-0.47= 0.16+3.7= 900-178-122=
7.43-3.6=
4.8+0.72=
1.08×5.6≈
①8.64﹣5.74=
②10.25+7.5=
③1.06×25=
④0.016÷0.25=