①932-287=
②147+276=
③450×9=
④604×8=
⑤271+169+293=
⑥☆792-537=
⑦☆363+125=
□○□=□( ) 够□ 不够□
□○□=□( ) □○□=□( )
□○□=□( )
1-0.92= - = ×3.2= ÷ ×5=
3.5+4.28= × = ÷ = 99×0.9+0.9=