Question

1) Calculati patratele nr-lor. : 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,2

2) Calculati cuburile nr-lor. :6,7,8,9,10,20,30
2
3) Aratati ca urmatoarele numere sunt patrate perfecte:1+4+2

2 2 2 2. 2 2 2 2 2
2+3+12 3+4+24. 3+5+30 3+6+3*22

Answer 1

1)1² = 1 ; 2² = 4  ; 3² = 9 ; 4² = 16 ; 5² = 25 ; 6² = 36 ; 7² = 49  ; 8² = 81 ; 9² = 81 ; 10² = 100 ; 11² = 121 ; 12² = 144  ; 13² = 169 ; 14² = 196 ; 15² = 225 ; 16² = 256 ; 17² = 289  ; 18² = 3241 ; 19² = 361 ; 20² = 400

2)

6³= 216 ; 7³ = 343;  8³ = 512 ; 9³ = 729;  10³ = 1000;  20³ = 8000 ; 30³ = 27000