Question

Calcule
√9 - √49=
√100 - √81 + √4=
√144 + √169 - √81

Answer 1

√9 - √49

3 - 7

-4

√100 - √81 + √4

10 - 9 + 2

1 + 2

3


√144 + √169 - √81

12 + 13 - 9

25 - 9

16

Answer 2

√9 = 3
√49 = 7
√100 = 10
√81 = 9
√4 = 2
√144 = 12
√169 = 13

3 - 9 = 6
10 - 9 + 4 = 5
11 + 13 + 9 = 35