Use of formula operand:celI、constant、character、area name、area、 function operator:十、一、*、/、%、入、() Character operator: Relation operator:=、>、、∈、<、◇ 人 =(B4①25)OSUM(D5:F5) Demo:oan examples D4 is computed as the sum of (al-a5)and b2 divided by Practice the use of formula c3 in sheet26 Use of formula operand：cell、constant、character、area name、area、 function operator：＋、－、*、／、%、  、（） Character operator：＆ Relation operator：=、>、>=、<=、<、<> =（B4 + 25）/ SUM（D5:F5） Demo: loan_example.xls Practice the use of formula D4 is computed as the sum of (a1-a5) and b2 divided by c3 in sheet2