by rounding each number to 1 significant figure, estimate the answer to 623 - 14.71 ÷ 0.54.

623 to 1 significant number = 600
14.71 to 1 significant number = 10
0.54 to 1 significant number = 0.5
answer:
[tex]\tt \dfrac{600-10}{0.5}=1180[/tex]