:1)238+34,87 5)723-177,302 2)533,187-78 6)7,5+234,812 3)619,903+47 7)472,3-50,733 4)26,888+ 4,74 8)911,277-28,66

1) 238+34,87=272,87
2) 533,187-78=455,187
3) 619,903+47=666,903
4) 26,888+4,74=31,628
5) 723-177,302=545,698
6) 7,5+234,812=243,312
7) 472,3-50,733=421,567
8) 911,277-28,66=882,617

238 + 34,87 = 272,87
533,187 − 78 = 455,187
619,903 + 47 = 666,903
26,888 + 4,74 = 31,628
723 − 177,302 = 545,698
7,5 + 234,812 = 242,312
472,3 − 50,733 = 421,567
911,277 − 28,66 = 882,617