1) 8.0192) 5,3 м² = 530 дм²3) 15 2/3 - 9 4/13 + 4 7/13 = 15 + 2/3 - 9 - 4/13 + 4 + 7/13 = 15 + 15/3 - 9 - 4/13 + 4 + 7/13 = 15 + 5 - 9 - 4/13 + 4 + 7/13 = 20 - 9 - 4/13 + 4 + 7/13 = 11 - 4/13 + 4 + 7/13 = 11 - 4/13 + 52/13 + 7/13 = 11 + 52/13 + 7/13 = 11 + 59/13 = 11 3/13
1) 8.019
2) 5,3 м² = 530 дм²
3) 15 2/3 - 9 4/13 + 4 7/13 = 15 + 2/3 - 9 - 4/13 + 4 + 7/13 = 15 + 15/3 - 9 - 4/13 + 4 + 7/13 = 15 + 5 - 9 - 4/13 + 4 + 7/13 = 20 - 9 - 4/13 + 4 + 7/13 = 11 - 4/13 + 4 + 7/13 = 11 - 4/13 + 52/13 + 7/13 = 11 + 52/13 + 7/13 = 11 + 59/13 = 11 3/13