Question

9999x7778+3333x6666=?用简便方法计算

请帮忙用简便方法计算.是四年级的哦.谢谢

Answer 1

9999x7778+6666x3333
=9999×7778+9999×2222
=9999×（7778+2222）
=99990000
谢谢及时采纳

Answer 2

9999x7778+3333x6666
=3333*(3*7778+6666)
=9999(7778+2222)
=9999*10000
=99990000

Answer 3

9999x7778+3333x6666
=3333*(3*7778+6666)
=9999(7778+2222)
=99990000

Answer 4

9999x7778+3333x6666
=3333*(3*7778+6666)
=9999(7778+2222)
=99990000

Answer 5

99990000