A ×2B=520 3A ×B=780 A ×(B÷2)=130 (A÷4)×(B×4)=260
A ×2B=2(A*B)=2*260=5203A ×B=3(A*B)=3*260=780A ×(B÷2)=(A*B)/2=260/2=130(A÷4)×(B×4)=A*B=260