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(23 +26)x25 (75 +76x25)简便运算怎么算的?

原式 =(23+26)x25+(75+76)x25 =49x25+151x25 =(49+151)x25 =200x25 =5000

76×25+8x75 =76×25+24×25 =(76+24)×25 =100×25 =2500

原式 =76x25+25x23+25 =(76+23+1)x25 =(99+1)x25 =100x25 =2500 供参考。

8.76x25.7+1.24x30.7=8.76x25.7+1.24x(25.7+5)=(8.76x25.7+1.24x25.7)+1.24x5=(8.76+1.24)x25.7+6.2=10x25.7+6.2=257+6.2=263.2

76x25一36x25二(76-36)x25=40x25=1000

76x25+25x24 =(76+24)x25 =100x25 =2500 希望能帮到你!

原式 =(4x19)x25x57 =4x25x19x57 =100x19x57 =100x(20x57-1x57) =100x(1140-57) =100x1083 =108300

345x76+345x25-345x1=345x(25-1+76)=345x100=34500

240×25+76×25 =60x4x25+19x4x25 =(60+19)x4x25 =79x100 =7900 谢谢,请采纳

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