[tex] \large\underline \mathcal{{ANSWER:}}[/tex]
1. [tex]\sf{12+24+34=34+12+\boxed{24}}[/tex]
2. [tex]\sf{2\times(15+20)=(\boxed{2\times}15)+(2\times\boxed{20})}[/tex]
3. [tex]\sf{8\times7=\boxed{7}\times8}[/tex]
4. [tex]\sf{24+\boxed{16}=5+35}[/tex]
5. [tex]\sf{(16\times5)\times4=8\times(\boxed{10}\times4)}[/tex]
[tex]\\[/tex]
