Risolvi 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

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

Calcola

$$299$$

Procedura della soluzione

Sottrai 173 da 123 per ottenere -50.

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

E -50 e 59 per ottenere 9.

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

Sottrai 92 da 9 per ottenere -83.

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

E -83 e 189 per ottenere 106.

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

Sottrai 249 da 106 per ottenere -143.

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

E -143 e 145 per ottenere 2.

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

Sottrai 183 da 2 per ottenere -181.

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

E -181 e 227 per ottenere 46.

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

Sottrai 59 da 46 per ottenere -13.

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

E -13 e 103 per ottenere 90.

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

Sottrai 231 da 90 per ottenere -141.

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

E -141 e 168 per ottenere 27.

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

Sottrai 47 da 27 per ottenere -20.

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

E -20 e 39 per ottenere 19.

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

Sottrai 126 da 19 per ottenere -107.

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

E -107 e 215 per ottenere 108.

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

Sottrai 268 da 108 per ottenere -160.

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

E -160 e 132 per ottenere -28.

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

Sottrai 27 da -28 per ottenere -55.

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

E -55 e 183 per ottenere 128.

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

Sottrai 77 da 128 per ottenere 51.

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

E 51 e 192 per ottenere 243.

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

Sottrai 116 da 243 per ottenere 127.

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

E 127 e 29 per ottenere 156.

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

Sottrai 159 da 156 per ottenere -3.

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

E -3 e 73 per ottenere 70.

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

Sottrai 241 da 70 per ottenere -171.

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

E -171 e 196 per ottenere 25.

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

Sottrai 155 da 25 per ottenere -130.

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

E -130 e 172 per ottenere 42.

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

Sottrai 142 da 42 per ottenere -100.

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

E -100 e 194 per ottenere 94.

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

Sottrai 187 da 94 per ottenere -93.

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

E -93 e 47 per ottenere -46.

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

Sottrai 116 da -46 per ottenere -162.

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

E -162 e 148 per ottenere -14.

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

Sottrai 232 da -14 per ottenere -246.

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

E -246 e 219 per ottenere -27.

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

Sottrai 141 da -27 per ottenere -168.

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

E -168 e 192 per ottenere 24.

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

Sottrai 98 da 24 per ottenere -74.

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

E -74 e 67 per ottenere -7.

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

Sottrai 19 da -7 per ottenere -26.

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

E -26 e 135 per ottenere 109.

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

Sottrai 193 da 109 per ottenere -84.

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

E -84 e 52 per ottenere -32.

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

Sottrai 91 da -32 per ottenere -123.

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

E -123 e 251 per ottenere 128.

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

Sottrai 216 da 128 per ottenere -88.

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

E -88 e 137 per ottenere 49.

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

Sottrai 83 da 49 per ottenere -34.

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

E -34 e 39 per ottenere 5.

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

Sottrai 168 da 5 per ottenere -163.

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

E -163 e 121 per ottenere -42.

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

Sottrai 74 da -42 per ottenere -116.

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

E -116 e 237 per ottenere 121.

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

Sottrai 121 da 121 per ottenere 0.

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

Sottrai 128 da 173 per ottenere 45.

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

E 45 e 191 per ottenere 236.

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

Sottrai 246 da 236 per ottenere -10.

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

E -10 e 267 per ottenere 257.

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

Sottrai 168 da 257 per ottenere 89.

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

E 89 e 139 per ottenere 228.

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

Sottrai 59 da 228 per ottenere 169.

$$169+97-123+156$$

E 169 e 97 per ottenere 266.

$$266-123+156$$

Sottrai 123 da 266 per ottenere 143.

$$143+156$$

E 143 e 156 per ottenere 299.

$$299$$

Scomponi in fattori

$$13\times 23$$