6个回答
2021-05-02
展开全部
=778×54+444×28
=778×54+222×54
=54×(778+222)
=54×1000
=54000
=778×54+222×54
=54×(778+222)
=54×1000
=54000
展开全部
778×54+444×28
=778×54+222×(54+2)
=54×(778+222)+222×2
=54000+444
=54444
=778×54+222×(54+2)
=54×(778+222)+222×2
=54000+444
=54444
展开全部
=(777+1)*54+444*28
=777*54+54+444*28
=111*7*54*111*4*28+54
=111*(7*54+4*28)+54
=111*490*54
=111*(500-10)+54
=111*500-111*10+54
=55500-1110+54
=54390+54
=54444
=777*54+54+444*28
=111*7*54*111*4*28+54
=111*(7*54+4*28)+54
=111*490*54
=111*(500-10)+54
=111*500-111*10+54
=55500-1110+54
=54390+54
=54444
展开全部
=778×56-778×2+222×2×28
=(778+222)×56-778×2
=56000-1556
=4044
=(778+222)×56-778×2
=56000-1556
=4044
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