1.8÷10=
4.2-2.2=
2.18-0.1=
10.8÷4=
0.205×100=
0.52+0.07=
12.77-2.77=
0.43+0.53=
503+497 =
62+38×0=
52+25-52+25=
0.6÷100=
1 . 36×1000 =
28÷4×7=
174-48-52=
5×4÷5×4=
42 - 42÷42 =