Answer:
[tex]−632.022[/tex]
Step-by-step explanation:
[tex]31.978-664[/tex]
[tex]\implies \frac{31978}{1000}-664[/tex]
[tex]\implies \frac{31978-664000}{1000}[/tex]
[tex]\implies \frac{−632022}{1000}[/tex]
[tex]\implies −632.022[/tex]
