999*778+333*666怎样简算?

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999*778+333*666怎样简算?999*778+333*666怎样简算?999*778+333*666怎样简算?999×778+333×666=999×778+333×(3×222)=999×

999*778+333*666怎样简算?
999*778+333*666怎样简算?

999*778+333*666怎样简算?
999×778+333×666
=999×778+333×(3×222)
=999×778+333×3×222
=999×778+999×222
=999×(778+222)
=999×1000
=999000

999*778+333*666
=999x778+333x3x222
=999x778+999x222
=999x(778+222)
=999x1000
=999000
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=999*778+3*111*3*2*111=999*778+3*3*111*2*111=999*778+999*222=999*(778+222)=999*1000=999000

999×778+333×666
=999×778+333×(3×222)
=999×778+333×3×222
=999×778+999×222
=999×(778+222)
=999×1000
=999000