28×6= 405×7= 367×5= 580×3=
⑴72×4=
⑵95﹣57=
⑶〇518+339=
⑷280×8=
⑸207×5=
⑹〇673﹣456=
①323×3=
②142×4=
③905×6=
④360×4=
⑤287×3=
⑥365×9=
89+111= 18.5-5.7= 0.4÷40%= 7.8x-5x=
÷37.5%= 0.62= ×9÷ ×9=
85-37= ×16= 204×5= 62+18×3=