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Madalinmada120
a fost răspuns

Calculeaza scotand facotrul comun:2×13+2×3,7×48+7×42-7×50,47×209-154×47,125×13+125×67+11×125-125×31

Răspuns :

CosmoteRo
2x13+2x3=2(13+3)=2x16=32
7x48+7x42-7x50=7(48+42-50)=7x40=280
47x209-154x47=47(209-154)=47x55=2585
125x13+125x67+11x125-125x31=125(13+67+11-31)=125x60=7500
Primăvară2017
2×13+2×3=
2×(13+3)=
2×16=
32

7×48+7×42-7×50=
7×(48+42-50)=
7×(90-50)=
7×40=
280

47×209-154×47=
47×(209-154)=
47×55=
2 585

125×13+125×67+11×125-125×31=
125×(13+67+11-31)=
125×(80+11-31)=
125×(91-31)=
125×60=
7 500

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