48*125=(40+8)*125=40*125+8*125=5000+1000=6000
48*125=6*(8*125)=6*1000=6000 供参考,有疑问请追问
用乘法分配律简算125*48-40*125=125*(48-40)=125*8=1000
=(40+5)*125=40*125+5*125=5000+625=5625或者=(40+5)*125=40*125+5*125=5000+5*(100+20+5)=5000+500+100+25=5625
48乘125 =6x8x125 =6x1000 =6000
脱式计算如下:48*15*125=(6*15)*(8*125)=90*1000=90000
1000÷125+48*19=8+48*(20-1)=8+960-48=960-(48-8)=960-40=920
答:16乘以25乘以125 =(4*25)*(4*125) =100*500 =50000
解:8X72X125等于( 72000 ) ∵已知需求出8X72X125等于多少 A *)* B = D ∴8 * 72 * 125 = (8 * 125)* 72 = 1000 * 72 = 72000 答:8X72X125等于72000
(1)49x125X8 (2)1527-295-205 (3)99X48+48 =49X(125X8) =1527-(295+205) =48X(99+1) =49X1000 =1527-500 =48X100 =4900 =1027 =4800