А
1) 2,3289654 ≈ 2,328,
2) 3,6540345 ≈ 3,654,
Б
1) 2,32802654 ≈ 2,328,
2) 123,7659012 ≈ 123,7659,
В
1) 2,3285554 ≈ 2,3286,
2) 0,0006754 ≈ 0,0007