①62+17=
②73-56=
③7+56=
④70-12=
①37+23=
②75-27=
③80-31=
④46+36=
⑤62-13=
⑥23+57=
①36+29=
②46﹣27=
③16+43=
④45+55=
⑤100﹣36=
⑥74﹣7=