246÷42 + 502 + а×20b = 20ab + 507,86
1) 246÷42 = 5,86
2) а×20b = 20ab
3) 5,86 + 502 = 507,86
4) 507,86 + 20ab = 20ab + 507,86
246÷42 + 502 + а×20b = 20ab + 507,86
1) 246÷42 = 5,86
2) а×20b = 20ab
3) 5,86 + 502 = 507,86
4) 507,86 + 20ab = 20ab + 507,86