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Calculeaza,grupand convenabil termenii.

a. 101+102+103+1.899+1.898+1.897
b. 23.425+11.832+16.475+9.068


Răspuns :

a.
101 + 1.899 = 2000
102 + 1.898 = 2000
103 + 1.897 = 2000
2000+2000+2000=6000

b.
 23.425+16.475 = 39.900
11.832 + 9.068 = 20.900
39.900 + 20.900 = 60.800