A table showing federal budget projections yesterday contained an incorrect figure for the fiscal 1986 target in the Gramm-Rudman-Hollings deficit-limitation proposal. The correct figure is $180 billion.

Congress yesterday added to the troubles it will face next week in what members are calling a "train wreck"-style showdown over balanced-budget legislation and then headed home for a four-day Veterans Day weekend.

A House-Senate conference is scheduled to begin work Tuesday on a compromise on the budget measure and a debt-ceiling extension that must be passed by next Thursday or Friday to avoid a possible financial default by the government. Because the two measures are linked, a budget compromise must be achieved before the debt ceiling can be raised to prevent a cutoff of the government's line of credit.

After voting to stick by their rival plans to force a balanced budget by the end of the decade, the House and Senate appointed conferees to work on a compromise, expanding the size of an already large team of bargainers who failed to reach an accord last week.

The House enlarged its team from 48 to 53, and the Senate added a similar number, including Sens. Phil Gramm (R-Tex.), Warren B. Rudman (R-N.H.) and Ernest F. Hollings (D-S.C.), principal sponsors of the Senate's original balanced-budget proposal.

The addition of the new players could complicate negotiations. Gramm has been a thorn in the side of House Democrats since he coauthored President Reagan's budget proposal in 1981 when he served in the House as a Democrat.

Meanwhile, in a related cat-and-mouse maneuver over the House version of the measure, the House Rules Committee cleared the way for votes next week on proposals to cut a separate stopgap funding bill for government agencies to bring the measure in line with the budget proposal.

This continuing resolution is needed to provide interim funding for agencies that have not yet received fiscal 1986 appropriations. So far only one of the 13 appropriations bills has been passed, the one for energy and water programs.

The deadline for passage of the continuing resolution is Thursday, putting it under the same deadline pressure as the debt-ceiling bill as well as an assortment of revenue measures also due to expire that day.

Congressional leaders had originally hoped to pass a simple extension of the interim funding measure until Dec. 5 without dragging it into the overall budget dispute. But when House Republicans proposed an 8.2 percent cut in funding levels to bring it in line with deficit targets in the House budget measure, Democrats countered by proposing a 5 percent cut. Both proposals were cleared for a floor vote Tuesday.

The only dissenting vote on the Rules Committee came from Rep. Tony P. Hall (D-Ohio), who said, "I'm a little concerned this is going to be like the MX missile and abortion. Everybody is going to try to attach Gramm-Rudman or the Democratic alternative to every bill" that comes through the House.

In other action, the Senate, on a voice vote last night, gave final approval for $3.2 billion in spending this year for the White House, the Treasury Department, the Postal Service and other agencies. The measure had been approved earlier in the day by the House, 221 to 159. It contains $951 million more than Reagan requested and faces a possible veto.

The Senate, turning down a provision that would have allowed contractors on some projects to pay below-standard wages, also passed an $8.7 billion appropriation for military construction. The bill, approved 94 to 1, goes to a conference committee.