①82-28=
②63-(24-17)=
③77-17+34=
①16+35=
②60-42=
③88-(51-23)=
④22+54=
⑤56-29=
⑥43+(66-32)=
38-14+29 28-32÷4
7×(45÷5) 63÷(18÷2)
56+38=
70-54=
82-49=
38+26+23=
68+13-35=
59+(54-23)=
90﹣44=
38+54=
27+49=
50﹣27﹣9=
98﹣42+29=
16+52+29=