【講古堂】大數四則運算加減乘除（入門篇）

行家看門道，外行看熱鬧。

加

IF(LEN(TEXT(G7,"00000000"))>8,LEFT(TEXT(G7,"00000000"),LEN(TEXT(G7,"00000000"))-8),0)

VALUE(RIGHT(TEXT(G7,"00000000"),8))

減

G15-G17

IF(G20<0,-1,0)

IF(F21<0,100000000,0)

G21+G22+G20

乘

G27*$G$29

VALUE(IF(LEN(TEXT(G32,"00000000"))>8,LEFT(TEXT(G32,"00000000"),LEN(TEXT(G32,"00000000"))-8),0))

VALUE(RIGHT(TEXT(G32,"00000000"),8))

G33+G34

除

F45*100000000

MOD(G39+G44,$G$41)

INT((G39+G44)/$G$41)

其餘的等下一片吧。

(提升篇：http://my.oschina.net/dubenju/blog/644257)