a, 86+357+14
= (86+14)+357
=100+357
=457
b, 25. 5 . 4 . 27 . 2
=(25 . 4) . (5 . 2 ). 27
=100 . 10 . 27
=1000. 27
=27000
a , 86 + 357 +14
= 443 +14
= 457
b,25 x 5 x 4 x 27 x2
= 125 x 108 x2
= 13500 x 2
= 27000
a) (86+14)+357
=100+357
=457
b)(25.4).(2.5).27
=100.10.27
2700
A= 86+14+357= 457
B=(25.4).(5.2).27=27000
a) \(86+357+14=\left(86+14\right)+357=100+357=457\)
b) \(25.5.4.27.2=\left(25.4\right).\left(5.2\right).27=100.10.27=27000\)
a) \(\text{86 + 357 + 14 = (86 + 14) + 357 = 100 + 357 = 457}\)
b) \(25\cdot5\cdot4\cdot27\cdot2=\left(25\cdot4\right)\cdot\left(5\cdot2\right)\cdot27=100\cdot10\cdot27=27000\)
Nếu đúng cho mik nha
a) 86 + 357 + 14
= ( 86 + 14 ) + 357
= 100 + 357
= 457
b) 25 . 5 . 4 . 27 . 2
= ( 25 . 4 ) ( 5 . 2 ) . 27
= 100 . 10 . 27
= 1000 . 27
= 27 000
a, 86 + 357 + 14
= ( 86 + 14 ) + 357
= 100 + 357
= 457
b, 25 x 5 x 4 x 27 x 2
= ( 25 x 4 ) x ( 5 x 2 ) x 27
= 100 x 10 x 27
= 1000 x 27
= 27000
a, 86 + 357 + 14 = ( 86 + 14 ) + 357 b, 25 . 5 . 4 . 27 . 2 = ( 25 . 4 ) . ( 5 . 2 ) . 27
= 100 + 357 = 100 . 10 . 27
= 457 = 27000
Tk cho mình nhé :))
