49999+4999+1999+499+49+5 怎样简算?382-98怎样简算??
1个回答
展开全部
49999+4999+1999+499+49+5
= (49999+1)+(4999+1)+(1999+1)+(499+1)+(49+1)
= 50000 + 5000 + 2000 + 500 + 50
= 57550
382-98
= 382 - 100 + 2
= 282 + 2
= 284
(215+357+429+581+625)-(205+347+419+571+615)
= (215-205)+(357-347)+(429-419)+(581-571)+(625-615)
= 10 + 10 + 10 + 10 + 10
= 50,10,49999+4999+1999+499+49+5
=50000-1+5000-1+2000-1+500-1+50-1+5
=57550
382-98
=382-100+2
=282+2
=284
215+357+429+581+625-(205+347+419+571+615)
=215-205+357-347+429-419+581-571+625-615
=10+10+10+10+10
=50,3,将5分解成5个1,分别与前面5个数相加
即50000+5000+2000+500+50=57550
382-98=382-100+2=282+2=284
215+357+429+581+625-(205+347+419+571+615)
=(215-205)+(357-347)+(429-419)+(581-571)+(625-615)
=10+10+10+10+10
=50,3,49999+1+4999+1+1999+1+499+1+49+1
=50000+5000+2000+500+50,2,49999+4999+1999+499+49+5
=50000-1+5000-1+2000-1+500-1+50-1+5
=(50000+5000+2000+500+50)-5+5
=57550
382-98
= 382 - 100 + 2
= 282 + 2
= 284,1,49999+4999+1999+499+49+5 怎样简算?382-98怎样简算?
还有一个:(215+357+429+581+625)-205+347+419+571+615) 也是简算!
= (49999+1)+(4999+1)+(1999+1)+(499+1)+(49+1)
= 50000 + 5000 + 2000 + 500 + 50
= 57550
382-98
= 382 - 100 + 2
= 282 + 2
= 284
(215+357+429+581+625)-(205+347+419+571+615)
= (215-205)+(357-347)+(429-419)+(581-571)+(625-615)
= 10 + 10 + 10 + 10 + 10
= 50,10,49999+4999+1999+499+49+5
=50000-1+5000-1+2000-1+500-1+50-1+5
=57550
382-98
=382-100+2
=282+2
=284
215+357+429+581+625-(205+347+419+571+615)
=215-205+357-347+429-419+581-571+625-615
=10+10+10+10+10
=50,3,将5分解成5个1,分别与前面5个数相加
即50000+5000+2000+500+50=57550
382-98=382-100+2=282+2=284
215+357+429+581+625-(205+347+419+571+615)
=(215-205)+(357-347)+(429-419)+(581-571)+(625-615)
=10+10+10+10+10
=50,3,49999+1+4999+1+1999+1+499+1+49+1
=50000+5000+2000+500+50,2,49999+4999+1999+499+49+5
=50000-1+5000-1+2000-1+500-1+50-1+5
=(50000+5000+2000+500+50)-5+5
=57550
382-98
= 382 - 100 + 2
= 282 + 2
= 284,1,49999+4999+1999+499+49+5 怎样简算?382-98怎样简算?
还有一个:(215+357+429+581+625)-205+347+419+571+615) 也是简算!
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询