\(2\cdot14\cdot98+7\cdot4\cdot32-28\cdot30\)
\(=28\cdot98+28\cdot32-28\cdot30\)
\(=28\cdot\left(98+32-30\right)\)
\(=28\cdot100=2800\)
2.14.98 + 7.4.32 - 28.30
= 28.98 + 28.32 - 28.30
= 28. (98 + 32 - 30)
= 28 . 100
= 2800
28.98+28.32-28.30
=28.(98+32-30)
=28.100
=2800
2.14.98+7.4.32-28.30
=2744+896-840
=2800
2 . 14 . 98 + 7 . 4 . 32 - 28 . 30
= 28 . 98 + 28 . 32 - 28 . 30
= 28 . (98 + 32 - 30)
= 28 . 100
= 2800
2*14*98+7*4*32-28*30
= 28*98+28*32-28*30
= 28*(98+32-30)
= 28*100
= 2800
K cho mk nha
\(2\times14\times98+7\times4\times32-28\times30\)
\(=28\times98+28\times32-28\times30\)
\(=28\times\left(98+32-30\right)\)
\(=28\times100\)
\(=2800\)
_Chúc bạn học tốt_
2×14×98+7×4×32−28×30
=28×98+28×32−28×30
=28×(98+32−30)
=28×100
=2800
Trả lời:
\(2.14.98+7\cdot4\cdot32-28\cdot30\)
\(=28\cdot98+28\cdot32-28\cdot30\)
\(=28\cdot\left(98+32-30\right)\)
\(=28\cdot100\)
\(=2800\)
Hc tốt #
2.14.98 + 7.4.32 - 28.30
= (2.14).98 + (7.4).32 - 28.30
= 28.98 + 28.32 - 28.30
= 28.(98+32-30)
= 28.100
= 2800