9999*8+1111*28简便计算
问题描述:
9999*8+1111*28简便计算
答
=1111*9*8+1111*28
=1111*72+1111*28
=1111*(72+28)
=1111*100
=111100
答
9999*8+1111*28
=9999*8+1111*(20+8)
=9999*8+1111*20+1111*8
=(9999+1111)*8+1111*20
=11110*8+1111*20
=1111*80+1111*20
=1111*(80+20)
=1111*100
=111100
答
原式=9×1111×8+1111×28=1111×72+1111×28=1111×100=111100
答
9999*8+1111*28
=9*1111*4*2+1111*4*7
=1111*4*(9*2+7)
=1111*4*25
=1111*100
=111100
答
原式=1111*9*8+1111*28=1111*(72+28)=1111*100=111100
答
9*1111*8+1111*28
=1111*72+1111*28
=1111*(72+28)
=111100