①1.56+8.44=
②39.6-20.9=
③2.55+15.33=
④0.96-0.32=
⑤4.08+5.24=
⑥31.9+2.45=
⑦36.45+23.14=
⑧59.86-23.36=
⑨92.66-3.27=