早教吧 育儿知识 作业答案 考试题库 百科 知识分享

递等式计算:(能巧算的要巧算)234×98÷49600×(72+88)567+127+533885-361+239804×57-573600-487-113-30009999+999+99+9+664×28×125

题目详情
递等式计算:(能巧算的要巧算)
234×98÷49          600×(72+88)567+127+533           885-361+239
804×57-57        3600-487-113-3000         9999+999+99+9+6       64×28×125
递等式计算:(能巧算的要巧算)
234×98÷49          600×(72+88)567+127+533           885-361+239
804×57-57        3600-487-113-3000         9999+999+99+9+6       64×28×125

234×98÷49          600×(72+88)567+127+533           885-361+239
804×57-57        3600-487-113-3000         9999+999+99+9+6       64×28×125
234×98÷49          600×(72+88)567+127+533           885-361+239804×57-57        3600-487-113-3000         9999+999+99+9+6       64×28×125234×98÷49          600×(72+88)567+127+533           885-361+239234×98÷49          600×(72+88)567+127+533           885-361+239804×57-57        3600-487-113-3000         9999+999+99+9+6       64×28×125804×57-57        3600-487-113-3000         9999+999+99+9+6       64×28×125
▼优质解答
答案和解析
(1)234×98÷49         
=234×(98÷49)
=234×2
=468

(2)600×(72+88)
=600×160
=96000

(3)567+127+533      
=(567+533)+127
=1100+127
=1227

(4)885-361+239
=524+239
=763

(5)804×57-57    
=(804-1)×57
=803×57
=45771

(6)3600-487-113-3000         
=3600-(487+113)-3000
=3600-600-3000
=3600-(600+3000)
=3600-3600
=0

(7)9999+999+99+9+6    
=9999+999+99+9+(1+1+1+1+2)
=(9999+1)+(999+1)+(99+1)+(9+1)+2
=10000+1000+100+10+2
=11112

(8)64×28×125
=8×8×28×125
=(8×125)×(28×8)
=1000×224
=224000