7× 9=63
77× 9=693
777× 9=6993
7777×9=
77777×9=
0.125×8=
0.32×0.2=
4.2×2=
0.11×0.5=
2.37×0.1=
0.4×1.5=
0.5×0.8=
0.25×0.04=
1.8×0.04=
0.16×5=
1.2×100=
0.45×0.2=
(元)