Răspuns :
Răspuns:
1289+3001-1909+1750
4290-1909+2750
2381+2750=5131
641+(2888-345)+2157=
641+2543+2157=
3184+2157=5341
Răspuns:
1.289+ 3001 - 1.909 + 1750 = 4.131
1 . 1.289+3.001 = 4.290
2. 4,290−1,909= 2,381
3. 2,381 + 1750 = 4.131
641+(2,888−345)+2,157 = 5341
1 . 2,888−345 = 2543
2. 641+543 = 1184
3. 1,184+2,157 = 5341