216+64×42÷28

216+64×42÷28简便方法

---

图差核模虚缓氏肢

---

=216+8×8×7×6÷4÷7
=216+（模誉亮8÷4）×（7÷7）虚手×（8×6）旦宽
=216+2×1×48
=216+96
=312

---