Grades 7-8 Video Solutions 2022-2022_7-8

Video Transcription

Q2. Beata rearranges the 5 numbered pieces shown to display the smallest possible 9-digit number. Which piece does she place at the right-hand end?  To make the smallest possible number, we want to have the leftmost digit as small as possible. So to begin with, we will have 107 be at the very beginning, since it starts off with a 1-digit.  Next, we will go for the next smallest number, which will be 3, so we will place the 31 next. Then we can place the 4, and then the 5 with the 59.  With this, we are left only with the 8. So we have made the smallest possible 9-digit number. The piece that is placed at the right-hand end gives us our answer, which is B, 8.

Video Summary

Q2. Beata rearranges the 5 numbered pieces shown to display the smallest possible 9-digit number. Which piece does she place at the right-hand end? To make the smallest possible number, we want to have the leftmost digit as small as possible. So to begin with, we will have 107 be at the very beginning, since it starts off with a 1-digit. Next, we will go for the next smallest number, which will be 3, so we will place the 31 next. Then we can place the 4, and then the 5 with the 59. With this, we are left only with the 8. So we have made the smallest possible 9-digit number. The piece that is placed at the right-hand end gives us our answer, which is B, 8.

Keywords

smallest number

9-digit number

rearrange pieces

right-hand end

Beata