48.19+48.115+134.52=48.(19+115)+134.52
=48.134+134.52
=134.(48+52)
=134.100
=13400
Học tốt nha!!!
\(48\cdot19+48\cdot115+134\cdot52\)
\(=48\cdot\left(19+115\right)+134\cdot52\)
\(=48\cdot134+134\cdot52\)
\(=134\cdot\left(48+52\right)\)
\(=134\cdot100\)
\(=13400\)
\(48.19+48.115+134.52\)
=48.(19+115)+134.52
=48.134+134.52
=134.(48+52)
=134.100
=13400
\(48.19+48.115+134.52\)
\(=48.\left(19+115\right)+134.52\)
\(=48.134+134.52\)
\(=134.\left(48+52\right)\)
\(=134.100\)
\(=13400\)