3.6÷0.1=
7.2×0.3=
0.45+0.55=
0.56÷0.7=
0.07×0.8=
9.2-1.2=
0.16×0.5=
80.3÷20.02≈
=
+=17
+=
①634﹣3.2×1.5÷0.1
②9.43+0.78﹣3.43
③
④
⑤
⑥