500×6= 90×3= 48÷3= 14×（2+7）= 301×3=
100﹣56= 910×5= 480+120= 605+200= 33+68÷4=
18+6×4= 39÷3= 476﹣245= 605×4﹣389=
500×6= 90×3= 48÷3= 14×（2+7）= 301×3=
100﹣56= 910×5= 480+120= 605+200= 33+68÷4=
18+6×4= 39÷3= 476﹣245= 605×4﹣389=
÷6= 15÷
=
×
=
÷
= 42×
=
﹣60%=
=
= 1÷
=
×12=
×18÷3=
÷
=（
﹣
）×
=
×
÷
=
=
=
=
=
=
=
=
=
=
=
=
×
=
×12=
×
=
÷
=
÷
= 9×
=
÷
═
÷12=
=
=
=
=
=
=
=
粤公网安备 44130202000953号