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Grupati convenabil termenii si calculati
a) 400+3.750+1.600+250

2.090+3.900+10+4.100

30.420+21.095+12.580+48.005

b) 178+1 196 + 2.084 + 1.304 + 822 + 7.916

2.125 + 12.259 + 10.167 + 2.175 + 2.141 + 4.133

122.334 + 42.212 + 511 . 766 + 57.788


Răspuns :

3.750+1.600+400+200=  4.350
4.100+3.900+2.090+10=10.100
48.005+30.420+21.095+12.580=112.100
7.916+2.084+1.304+1196+822+178=13.500
12.259+10.167+4.133+2141+2.125=30.825
511.766+122.334+57.788+42.212=734.100
a) 400+1600=2000; 3,750+250=4,000; 2000+4000=6000