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Nataliaoancea87
a fost răspuns

Ajutati-ma va rog . Calculeaza folosind grupari de termeni 1)28×3=(20+8)×3=20×3+8×3=...................=............
2) 175×6=(100+70+5)×6=100×6+70×6+5×6=..................................=.................................

Răspuns :

Sissi123
1.)84=28x3=60+24= 84=84=84 adevarat 
2.)1050=175x6=600+420+30=1050=1050=1050 adevarat
Needhelp112
1) 28×3=(20+8)×3=20×3+8×3=60 + 24 = 84
2) 175×6=(100+70+5)×6=100×6+70×6+5×6= 600+420+30 = 1050

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