683-153-47 480-54-136
763-246-54-63 4167-(803+ 167+ 197)
9.8+3.54= 6.05-3.7= 10-3.97=
2.4×0.45= 4.6×0.22= 0.65×80=
8.4 cm>cm5mm
7390g>7.39kg
0.9dm2<60cm2