0.85-0.5= 5.4-4.5= 6.8+8= 2.06+1.2=
3-2.3= 0.94+0.6= 6.8-6.4= 0.63-0.6=
①4.8+5.96
②8-3.28
③6.38+5.55
④6.53+8.3
⑤7.5-0.89
⑥1.35-0.76
①4.26+3.56+5.7
②15.8-3.9-6.3
③6.1-5.78+3.59
④8.5+6.52-7.06
⑤15.38-5.38-4.2
⑥1.45+2.4+3.27