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Calculeaza In Doua Moduri

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Răspuns :

Anairda01
4*11+4*210+4*512+4*176=44+840+2048+704=3636
4*11+4*210+4*512+4*176=4*(11+210+512+176)=4*909=3636

7*140+7*275+7*308+7*56=980+1925+2156+396=5453
7*140+7*275+7*308+7*56=7*(140+275+308+56)=7*779=5453

3*800-3*700=2400-2100=300
3*800-3*700=3*(800-700)=3*100=300

8*60-8*0=480-0=480
8*60-8*0=8*(60-0)=8*60=480
Greeneyescurlyhair
4*11+4*210+4*512+4*176
1) 44+840+2048+704=3636
2) 4(11+210+512+176)=4*909=3636


7*140+7*275+7*308+7*56
1) 980+1925+2156+392=5453
2) 7(140+275+308+56)=7*779=5453


3*800-3*700
1) 2400-2100=300
2) 3(800-700)=3*100=300


8*60-8*0
1) 480-0=0
2) 8(60-0)=8*60=480

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