(51+48+52十49)x6简便计算
(51+48+52十49)x6简便计算
(51+48+52+49)×6
=[(51+49)+(48+52)]×6
=(100+100)×6
=200×6
=1200
(51+48+52十49)x6简便
(51+48+52+49)×6
=[(51+49)+(48+52)]×6
=(100+100)×6
=200×6
=1200
49X51十52X51-51简便计算
49X51十52X51-51
=(49+52-1)X51
=100X51
=5100
51×49+48×49+49简便计算
51×49+48×49+49=49×(51+48+1)=49×100=4900
51+49x6的简便计算方法
51+49x6
=51+(50-1)×6
=51+300-6
=351-6
=345
简便计算。49x51十51x49=
要是题目没错的话,而且你学过平方差公式,可以这样做
49×51+51×49
=(50-1)×(50+1)×2
=(50²-1²)×2
=(2500-1)×2
=2500×2-1×2
=5000-2
=4998
49十51+56简便计算
(49+51)+56
=100+56=156
简便计算( 34十14)x6
(34+14)×6
=48×6
=(50-2)×6
=50×6-2×6
=300-12
=288
简便计算 100一48\4x6
简便计算 100一48\4x6
100一48\4x6
=100-12*6
=100-72
=28
52*102 51*101-49*99-48*98的简便计算方法
简便计算方法
52*102+51*101-49*99-48*98
=104*51+51*101-49/99-96*49
=(104+101)*51-49*(99+96)
=205*51-49*195
=205*51-51*195+2*195
=(205-195)*51+390
=10*51+390
=510+390
=900