Question

Please help me with this on the image

Answer 1

Answer:

Step-by-step explanation:

a). Given expression in the question is,

   $\frac{13822\times 623}{14}$

   Exact value of the expression will be,

   $\frac{13822\times 623}{14}=615079$

b). By using approximations to 1 significant figure,

   13822 ≈ 10000

   623 ≈ 600

   14 ≈ 10

   615079 ≈ 60000

   Now use the expression,

   $\frac{13822\times 623}{14}=\frac{10000\times 600}{10}$

                  = 60000