PRESIDENT CARTER STRETCHES both of his arms to crowds in Jacksonville, Fla. yesterday. The president challenged GOP presidential nominee Ronald Reagan to a series of debates, an offer Reagan wasted no time accepting. Carter, Reagan JACKSONVILLE, Fla. (AP) - President Carter, saying he anticipates a "hard-fought and thoughtful cam- paign," challenged Republican presidential nominee Ronald Reagan to a series of debates yesterday and promptly went politicking. Reagan, in Detroit, lost no time ac- cepting the challenged offered the day after his selection as Republican stan- dard-bearer and his announcement of George Bush as his running mate. CARTER, WHO spent the week of the Republican National Convention on vacation in Georgia, flew to Jackson- ville, Fla., yesterday afternoon for a day of political talks, taking his first opportunity to react to Reagan's nomination. After an outdoor rally in Jackson- ville, the president was flying to Hollywood, Fla., for a fund-raiser and a speech to the International Transport Workers Federation before returning to Washington. Asked by reporters in Jacksonville about the Reagan nomination, the president said: "I think it's a good ticket. I think they'll be formidable op- ponents and we look forward to a good campaign." AND IF former President Gerald Ford had been named as Reagan's vice- presidential nominee? "That would have been a pleasure either way," the president said. Before departing yesterday morning from Sapelo Island off the Georgia coast, agree to where he had been vacationing, Carter made a congratulatory telephone call to Reagan and then sent a telegram suggesting the fall debates "in the various regions of our nation." Reagan said "he thought that was a good idea," Carter told reporters later. IN THE telegram, Carter suggested the debates would enable the can- didates to "thoroughly discuss issues of national concern and of interest to the people of particular sections of our nation." At the outdoor rally near the St. Johns River in Jacksonville, the president was cheered by a noontime crowd of debate about 5,000, many standing on balconies under a clear blue sky. At a meeting with community leaders, Carter said Reagan's proposed tax cut - of 10per cent a year for three years - would "shock the economy" and "re-stimulate the inflationary spiral ina devastating way." In his brief remarks, to which the audience offered little reaction, Carter reiterated his commitment to a strong defense, saying he believes in "peace through strength." He pledged that if re-elected, "our commitment to defen- se will continue to increase year by year." new Brewers Yogurt on slflei all QR l