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1800/25x4/12怎么脱式计算.

解答:在线数学帮助你! 根据题目:25X11X4;因为都是乘的(同目运算) 可以利用乘法交换律: =25X4X11 =100X11 =1100; 但愿对你有帮助!!祝你学习愉快!!!

800÷25 =(800x4)÷(25x4) =3200÷100 =32

25x11x4 =25x4x11 =100x(10+1) =100x10+100x1 =1000+100 =1100

如图

75x4x25x4 =(75x4)x(25x4) =300x100 =30000

题干不详

800减600除以括号25乘4括号脱式计算 800-600÷(25x4) =800-600÷100 =800-6 =794

0.125x0.25x8x4 =(0.125x8)x(0.25x4) =1x1 =1

25*33*4 =5*5*33*4 =5*4*5*33 =20*5*33 =100*33 =3300

2.5x45x0.4 =2.5x0.4x45 =1x45 =45

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