a)=234(1257-257)
=234.1000
=234000
b)=524(1327-327)
=524.1000
=524000
c)=325(1574-325-24)
=325.1225
=398125
d)=175(1274-273-1)
=175.1000
=175000
234x (1257-257)= 234 x 1000 = 234000
1327 x 524 - 524 x 327 = 524 x (1327 - 327 ) = 524 x 1000 = 524000
325x1574 - 325 x 325 -325 x24 =325 x(1574 - 325 - 24 )= 325 x 1225 =398125
175 x 1274 - 175 x273 -175 = 175 x (1274 - 273 -1) = 175 x 1000= 175000
kkk mk nha bạn !!!!!!!!
a)234 x 1257 - 234 x257
= 234 x (1257 - 257)
= 234 x 1000
= 234000
b)1327 x 524 - 524 x327
= 524 x (1327 - 327)
=524 x 1000
=524000
c)325 x 1574 - 325 x325 - 325 x24
= 325 x (1574 -325 - 24)
=325 x 1225
=325 x 1000+325 x 100 +325 x125
=325000+32500+40625
=390125
d)175 x 1274 - 175 x 273 - 175
=175 x (1274-273-1)
=175 x 1000
=175000
234 x 1257 - 234 x 257 = 234 x (1257 - 257) = 234 x 1000 = 234000
1327 x 524 - 524 x 327 = 524 x (1327 - 327) = 524 x 1000 = 524000
325 x 1574 - 325 x 325 - 325 x 24 = 325 x (1574 - 325 - 24) = 325 x 1225 = 398125
175 x 1274 - 175 x 273 - 175 = 175 x 1274 - 175 x 273 - 175 x 1 = 175 x (1274 - 273 - 1) = 175 x 1000 = 175000
\(234.1257-234.257=234.\left(1257-257\right)=234.1000=234000.\)
\(1327.524-524.327=524.\left(1327-327\right)=524.1000=524000\)
\(325.1574-325.325-325.24=325.\left(1574-325-24\right)=325.1225=398125\)
\(175.1274-175.273-175=175.\left(1274-273-1\right)=175.1000=175000\)
Câu thứ 3 số không đẹp, xem lại đề
234 x 1257 - 234 x257
=234x(1257-257)
=234x1000
=234000
327 x 524 - 524 x327
=327x(524-524)
=327x0
=0
325 x 1574 - 325 x325 - 325 x24
=325x(1574-24)-325x325
=325x1550-(300x300+25x25)
=325x1550-(90000+625)
=325x1550-90625
=413125
175 x 1274 - 175 x 273 - 175
=175x(1274-273-1)
=175x1000
=175000
a/ 234 x 1257 - 234 x 257
= 234 x (1257 - 257)
= 234 x 1000
= 234000
b/ 1327 x 524 - 524 x 327
= 524 x (1327 - 327)
= 524 x 1000
= 524000
c/ 325 x 1574 - 325 x 325 - 325 x 24
= 325 x (1574 - 325 - 24)
= 325 x 1225
= 398125
d/ 175 x 1274 - 175 x 273 - 175
= 175 x 1274 - 175 x 273 - 175 x 1
= 175 x (1274 - 273 - 1)
= 175 x 1000
= 175000
k mk nha bn !!!!
234 x 1257 - 234 x 257
= 234 x ( 1257 - 257 )
= 234 x 1000
= 234000
1327 x 524 - 524 x 327
= 524 x ( 1327 - 327 )
= 542 x 1000
= 542000
175 x 1274 - 175 x 273 -175
= 175 x ( 1274-273 )
= 175 x 1001
= 175175
Câu còn lại mình chưa hiểu . Thông cảm nha !
234 x 1257 - 234 x 257 1327 x 524 - 524 x 327
= 234 x ( 1257 - 257 ) = 524 x ( 1327 - 327 )
= 234 x 1000 = 524 x 1000
= 234000 = 524000
175 x 1274 - 175 x 273 - 175 325 x 1574 - 325 x 325 - 325 x 24
= 175 x 1274 - 175 x 273 - 175 x 1 = 325 x ( 1574 - 325 - 24 )
= 175 x ( 1274 - 273 - 1 ) = 325 x 1225
= 175 x 1000 = 398125
= 175000
mình sợ câu d) bị sai,ko biết mình làm có đúng ko
234 nhan ( 1257-257) = 234000
524 nhan (1327 - 3270 =524000
175 nhan ( 1274 - 175 -1) = 175 nhan 1100 192500
