Solve {c}{+11}{-12}{-8}{+6}{+21}{+25}{0}{-2}{+2}{+11}{+19}{-15}{-14}{-17}{+18}{+26}{+13}{+24}{+21}hline

$$\left. \begin{array} { c } { + 11 } \\ { - 12 } \\ { - 8 } \\ { + 6 } \\ { + 21 } \\ { + 25 } \\ { 0 } \\ { - 2 } \\ { + 2 } \\ { + 11 } \\ { + 19 } \\ { - 15 } \\ { - 14 } \\ { - 17 } \\ { + 18 } \\ { + 26 } \\ { + 13 } \\ { + 24 } \\ { + 21 } \\ \hline \end{array} \right.$$

Verify

Solution Steps

Subtract 12 from 11 to get -1.

$$-1-8+6+21+25-0+2+2+11-19-15-14+17+18+26+13+24=21$$

Subtract 8 from -1 to get -9.

$$-9+6+21+25-0+2+2+11-19-15-14+17+18+26+13+24=21$$

Add -9 and 6 to get -3.

$$-3+21+25-0+2+2+11-19-15-14+17+18+26+13+24=21$$

Add -3 and 21 to get 18.

$$18+25-0+2+2+11-19-15-14+17+18+26+13+24=21$$

Add 18 and 25 to get 43.

$$43-0+2+2+11-19-15-14+17+18+26+13+24=21$$

Subtract 0 from 43 to get 43.

$$43+2+2+11-19-15-14+17+18+26+13+24=21$$

Add 43 and 2 to get 45.

$$45+2+11-19-15-14+17+18+26+13+24=21$$

Add 45 and 2 to get 47.

$$47+11-19-15-14+17+18+26+13+24=21$$

Add 47 and 11 to get 58.

$$58-19-15-14+17+18+26+13+24=21$$

Subtract 19 from 58 to get 39.

$$39-15-14+17+18+26+13+24=21$$

Subtract 15 from 39 to get 24.

$$24-14+17+18+26+13+24=21$$

Subtract 14 from 24 to get 10.

$$10+17+18+26+13+24=21$$

Add 10 and 17 to get 27.

$$27+18+26+13+24=21$$

Add 27 and 18 to get 45.

$$45+26+13+24=21$$

Add 45 and 26 to get 71.

$$71+13+24=21$$

Add 71 and 13 to get 84.

$$84+24=21$$

Add 84 and 24 to get 108.

$$108=21$$

Compare 108 and 21.

$$\text{false}$$