如果axb等于32那么(Ax4)x(B÷2等于多少？ab=32,4AXB/2=2AB=2X32=64
a×b=32,那么(a×4)×(b÷2)=2×a×b=2×32=64.
(a×4)×(b÷2) = 4a×b/2 = 4ab/2= 2ab = 2×32 = 64
