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25×44是用简便方法用脱式计算

列式计算为 25×44 =25×(40+4) =25×40+25×4 =1000+100 =1100 所以原式的结果为1100.

25X(40十4) =25X40十25X4 =1000十100 =1100

(1)216+384+404+796, =(216+384)+(404+796), =600+1200, =1800; (2)154-(54+98), =154-54-98, =100-98, =2; (3)17×25×4, =17×(25×4), =17×100, =1700; (4)160-60÷2, =160-30, =130; (5)420÷35, =(420÷7)÷(...

475-34+25 =(475+25)-34 =500-34 =466

44×28-3×44 = 44×(28-3) = 44×25 = (40+4)×25 = 40×25+4×25 = 1000+100 = 1100

25×36简便算法脱式计算 25×36 =25*4*9 =100*9 =900

(1)310+4.25+3.7+134=310+3.7+4.25+134=(310+3.7)+(4.25+134)=4+6=10;(2)0.125×3.2×25=0.125×8×0.4×25=(0.125×8)×(0.4×25)=1×10=10;(3)17×44+54×17=17×(44+54)=17×98=14;(4)7.8÷〔32×(1-58)+3.6〕=7.8÷〔32×38+3.6〕=7.8...

=40✘25-4✘25 =1000-100 =900

44+25 =40+4+20+5 =40+20+4+5 =60+9 =69

(0·25×2·5)×0·4 =0.25*(0.4*2.5) =0.25*1 =0.25 您好,很高兴为您解答,OutsiderL夕为您答疑解惑 如果本题有什么不明白可以追问,如果满意记得采纳,手机客户端右上角评价点满意即可。 如果有其他问题请采纳本题后另发点击向我求助,答题不易...

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