Xiao Mahu forgot all the rounding when calculating a three-digit multiplied by eight, and the result was 842. You know, the correct result is

If you forget that the number of three digits 8 is 842, the result is as follows: the number of digits is 2, and only the number of digits 4 times 8 and 9 times 8 is 2. The decimal place is 4, only 3 times 8 and 8 times 8 are not collected, and the hundredth is 8, only 1 times 8 and 6 times 8 are not collected. The final results are: 134, 139, 184,189,634,639,684,689. Then multiply 8 by 8 to get 8 answers.