Lutasin ang 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

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

I-evaluate

$$299$$

Mga Hakbang ng Solution

I-subtract ang 173 mula sa 123 para makuha ang -50.

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

Idagdag ang -50 at 59 para makuha ang 9.

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

I-subtract ang 92 mula sa 9 para makuha ang -83.

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

Idagdag ang -83 at 189 para makuha ang 106.

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

I-subtract ang 249 mula sa 106 para makuha ang -143.

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

Idagdag ang -143 at 145 para makuha ang 2.

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

I-subtract ang 183 mula sa 2 para makuha ang -181.

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

Idagdag ang -181 at 227 para makuha ang 46.

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

I-subtract ang 59 mula sa 46 para makuha ang -13.

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

Idagdag ang -13 at 103 para makuha ang 90.

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

I-subtract ang 231 mula sa 90 para makuha ang -141.

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

Idagdag ang -141 at 168 para makuha ang 27.

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

I-subtract ang 47 mula sa 27 para makuha ang -20.

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

Idagdag ang -20 at 39 para makuha ang 19.

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

I-subtract ang 126 mula sa 19 para makuha ang -107.

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

Idagdag ang -107 at 215 para makuha ang 108.

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

I-subtract ang 268 mula sa 108 para makuha ang -160.

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

Idagdag ang -160 at 132 para makuha ang -28.

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

I-subtract ang 27 mula sa -28 para makuha ang -55.

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

Idagdag ang -55 at 183 para makuha ang 128.

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

I-subtract ang 77 mula sa 128 para makuha ang 51.

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

Idagdag ang 51 at 192 para makuha ang 243.

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

I-subtract ang 116 mula sa 243 para makuha ang 127.

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

Idagdag ang 127 at 29 para makuha ang 156.

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

I-subtract ang 159 mula sa 156 para makuha ang -3.

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

Idagdag ang -3 at 73 para makuha ang 70.

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

I-subtract ang 241 mula sa 70 para makuha ang -171.

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

Idagdag ang -171 at 196 para makuha ang 25.

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

I-subtract ang 155 mula sa 25 para makuha ang -130.

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

Idagdag ang -130 at 172 para makuha ang 42.

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

I-subtract ang 142 mula sa 42 para makuha ang -100.

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

Idagdag ang -100 at 194 para makuha ang 94.

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

I-subtract ang 187 mula sa 94 para makuha ang -93.

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

Idagdag ang -93 at 47 para makuha ang -46.

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

I-subtract ang 116 mula sa -46 para makuha ang -162.

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

Idagdag ang -162 at 148 para makuha ang -14.

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

I-subtract ang 232 mula sa -14 para makuha ang -246.

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

Idagdag ang -246 at 219 para makuha ang -27.

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

I-subtract ang 141 mula sa -27 para makuha ang -168.

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

Idagdag ang -168 at 192 para makuha ang 24.

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

I-subtract ang 98 mula sa 24 para makuha ang -74.

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

Idagdag ang -74 at 67 para makuha ang -7.

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

I-subtract ang 19 mula sa -7 para makuha ang -26.

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

Idagdag ang -26 at 135 para makuha ang 109.

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

I-subtract ang 193 mula sa 109 para makuha ang -84.

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

Idagdag ang -84 at 52 para makuha ang -32.

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

I-subtract ang 91 mula sa -32 para makuha ang -123.

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

Idagdag ang -123 at 251 para makuha ang 128.

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

I-subtract ang 216 mula sa 128 para makuha ang -88.

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

Idagdag ang -88 at 137 para makuha ang 49.

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

I-subtract ang 83 mula sa 49 para makuha ang -34.

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

Idagdag ang -34 at 39 para makuha ang 5.

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

I-subtract ang 168 mula sa 5 para makuha ang -163.

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

Idagdag ang -163 at 121 para makuha ang -42.

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

I-subtract ang 74 mula sa -42 para makuha ang -116.

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

Idagdag ang -116 at 237 para makuha ang 121.

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

I-subtract ang 121 mula sa 121 para makuha ang 0.

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

I-subtract ang 128 mula sa 173 para makuha ang 45.

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

Idagdag ang 45 at 191 para makuha ang 236.

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

I-subtract ang 246 mula sa 236 para makuha ang -10.

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

Idagdag ang -10 at 267 para makuha ang 257.

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

I-subtract ang 168 mula sa 257 para makuha ang 89.

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

Idagdag ang 89 at 139 para makuha ang 228.

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

I-subtract ang 59 mula sa 228 para makuha ang 169.

$$169+97-123+156$$

Idagdag ang 169 at 97 para makuha ang 266.

$$266-123+156$$

I-subtract ang 123 mula sa 266 para makuha ang 143.

$$143+156$$

Idagdag ang 143 at 156 para makuha ang 299.

$$299$$

I-factor

$$13\times 23$$