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ex 4 va rog frumosssss​

Ex 4 Va Rog Frumosssss class=

Răspuns :

Răspuns:

110+120+130+140+150+160=

=(140+160)+(150+120+130)+110

=300+300+110

=710

1400+1500+1600+1700+1800+1900=

=(1400+1600)+(1500+1700+1800)+1900=3000+5000+1900=

=8000+1900=

=9900

210.000+220.000+230.000+240.000+

250.000+260.000=

=(240.000+260.000)+(250.000+220.000+230.000)+210.000=

=500.000+700.000+210.000=

=1.200.000+210.000=

=1.410.000

Sper ca e bun !! Mi-a luat bun!!

Mult spor!!