Verified answer

1) 6.58 * 1.7 = 11,186
2) 8.92 : 0.4 = 22,3
3) 0.37 * 2 = 0.74
4) 155,44 : 29 - 4,86 = 05
5) 20.8 : 0,64 - 0,64 + 24,44 - 56,3 = 0