Verified answer

[tex]2.7 \times 0.2 + 0.3 \times 0.2 - 7.8 \times 3[/tex]

[tex]2.7 \times 2 = 0.54[/tex]

[tex]0.3 \times 0.2 = 0.06[/tex]

[tex]7.8 \times 3 = 23.4[/tex]

[tex]0.54 + 0.06 = 0.6[/tex]

[tex]0.6 - 23.4 = - 22.8[/tex]