Solve 123-173+59-92+189-249+145-183+227-59+103-231+168-47+39-126+215-268+132-27+183-77+192-116+29-159+73-241+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156

$$123-173+59-92+189-249+145-183+227-59+103-231+168-47+39-126+215-268+132-27+183-77+192-116+29-159+73-241+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Evaluate

$$299$$

Solution Steps

Subtract 173 from 123 to get -50.

$$-50+59-92+189-249+145-183+227-59+103-231+168-47+39-126+215-268+132-27+183-77+192-116+29-159+73-241+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Add -50 and 59 to get 9.

$$9-92+189-249+145-183+227-59+103-231+168-47+39-126+215-268+132-27+183-77+192-116+29-159+73-241+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Subtract 92 from 9 to get -83.

$$-83+189-249+145-183+227-59+103-231+168-47+39-126+215-268+132-27+183-77+192-116+29-159+73-241+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Add -83 and 189 to get 106.

$$106-249+145-183+227-59+103-231+168-47+39-126+215-268+132-27+183-77+192-116+29-159+73-241+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Subtract 249 from 106 to get -143.

$$-143+145-183+227-59+103-231+168-47+39-126+215-268+132-27+183-77+192-116+29-159+73-241+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Add -143 and 145 to get 2.

$$2-183+227-59+103-231+168-47+39-126+215-268+132-27+183-77+192-116+29-159+73-241+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Subtract 183 from 2 to get -181.

$$-181+227-59+103-231+168-47+39-126+215-268+132-27+183-77+192-116+29-159+73-241+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Add -181 and 227 to get 46.

$$46-59+103-231+168-47+39-126+215-268+132-27+183-77+192-116+29-159+73-241+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Subtract 59 from 46 to get -13.

$$-13+103-231+168-47+39-126+215-268+132-27+183-77+192-116+29-159+73-241+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Add -13 and 103 to get 90.

$$90-231+168-47+39-126+215-268+132-27+183-77+192-116+29-159+73-241+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Subtract 231 from 90 to get -141.

$$-141+168-47+39-126+215-268+132-27+183-77+192-116+29-159+73-241+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Add -141 and 168 to get 27.

$$27-47+39-126+215-268+132-27+183-77+192-116+29-159+73-241+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Subtract 47 from 27 to get -20.

$$-20+39-126+215-268+132-27+183-77+192-116+29-159+73-241+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Add -20 and 39 to get 19.

$$19-126+215-268+132-27+183-77+192-116+29-159+73-241+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Subtract 126 from 19 to get -107.

$$-107+215-268+132-27+183-77+192-116+29-159+73-241+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Add -107 and 215 to get 108.

$$108-268+132-27+183-77+192-116+29-159+73-241+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Subtract 268 from 108 to get -160.

$$-160+132-27+183-77+192-116+29-159+73-241+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Add -160 and 132 to get -28.

$$-28-27+183-77+192-116+29-159+73-241+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Subtract 27 from -28 to get -55.

$$-55+183-77+192-116+29-159+73-241+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Add -55 and 183 to get 128.

$$128-77+192-116+29-159+73-241+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Subtract 77 from 128 to get 51.

$$51+192-116+29-159+73-241+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Add 51 and 192 to get 243.

$$243-116+29-159+73-241+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Subtract 116 from 243 to get 127.

$$127+29-159+73-241+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Add 127 and 29 to get 156.

$$156-159+73-241+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Subtract 159 from 156 to get -3.

$$-3+73-241+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Add -3 and 73 to get 70.

$$70-241+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Subtract 241 from 70 to get -171.

$$-171+196-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Add -171 and 196 to get 25.

$$25-155+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Subtract 155 from 25 to get -130.

$$-130+172-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Add -130 and 172 to get 42.

$$42-142+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Subtract 142 from 42 to get -100.

$$-100+194-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Add -100 and 194 to get 94.

$$94-187+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Subtract 187 from 94 to get -93.

$$-93+47-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Add -93 and 47 to get -46.

$$-46-116+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Subtract 116 from -46 to get -162.

$$-162+148-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Add -162 and 148 to get -14.

$$-14-232+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Subtract 232 from -14 to get -246.

$$-246+219-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Add -246 and 219 to get -27.

$$-27-141+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Subtract 141 from -27 to get -168.

$$-168+192-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Add -168 and 192 to get 24.

$$24-98+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Subtract 98 from 24 to get -74.

$$-74+67-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Add -74 and 67 to get -7.

$$-7-19+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Subtract 19 from -7 to get -26.

$$-26+135-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Add -26 and 135 to get 109.

$$109-193+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Subtract 193 from 109 to get -84.

$$-84+52-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Add -84 and 52 to get -32.

$$-32-91+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Subtract 91 from -32 to get -123.

$$-123+251-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Add -123 and 251 to get 128.

$$128-216+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Subtract 216 from 128 to get -88.

$$-88+137-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Add -88 and 137 to get 49.

$$49-83+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Subtract 83 from 49 to get -34.

$$-34+39-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Add -34 and 39 to get 5.

$$5-168+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Subtract 168 from 5 to get -163.

$$-163+121-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Add -163 and 121 to get -42.

$$-42-74+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Subtract 74 from -42 to get -116.

$$-116+237-121+173-128+191-246+267-168+139-59+97-123+156$$

Add -116 and 237 to get 121.

$$121-121+173-128+191-246+267-168+139-59+97-123+156$$

Subtract 121 from 121 to get 0.

$$173-128+191-246+267-168+139-59+97-123+156$$

Subtract 128 from 173 to get 45.

$$45+191-246+267-168+139-59+97-123+156$$

Add 45 and 191 to get 236.

$$236-246+267-168+139-59+97-123+156$$

Subtract 246 from 236 to get -10.

$$-10+267-168+139-59+97-123+156$$

Add -10 and 267 to get 257.

$$257-168+139-59+97-123+156$$

Subtract 168 from 257 to get 89.

$$89+139-59+97-123+156$$

Add 89 and 139 to get 228.

$$228-59+97-123+156$$

Subtract 59 from 228 to get 169.

$$169+97-123+156$$

Add 169 and 97 to get 266.

$$266-123+156$$

Subtract 123 from 266 to get 143.

$$143+156$$

Add 143 and 156 to get 299.

$$299$$

Factor

$$13\times 23$$