初一数学题(计算题)

来源：百度知道 编辑：UC知道 时间：2024/05/06 09:11:27
要简算 不要太复杂，偶才初一
7778*9999+3333*6666

7778*9999+3333*6666
=7778*9999+9999*2222
=9999*(7778+2222)
=9999*10000
=99990000

7778*9999+3333*6666
=[7777+1]*9999+3333*3*2222
=7777*9999+9999+9999*2222
=9999*[7777+1+2222]
=9999*10000
=99990000

7778*9999+3333*6666
=7778*3333*3+3333*6666
=3333*(7778*3+6666)
=3333*(23334+6666)
=3333*30000
=99990000

7778*9999+3333*6666
=7778*(3333+6666)+3333*6666
=7778*3333+7778*6666+3333*6666
=7778*3333+6666*(7778+3333)
=7778*3333+6666*11111
=3333*(7778+2*11111)
=3333*30000
=99990000

7778*9999+3333*6666
=7778*9999+9999*2222
=9999*(7778+2222)
=9999*10000
=99990000
7778*9999+3333*6666
=7778*3333*3+3333*6666
=3333*(7778*3+6666)
=3333*(23334+6666)
=3333*30000
=99990000
OK!

7778*9999+3333*6666
=77772222+22217778
=99990000