问题 解答题 ①135+937=②978-497=③45÷5=④36÷7=⑤228×7=⑥260×6= 答案 ①135+937=1072②978-497=481③45÷5=9④36÷7=517⑤228×7=1596⑥260×6=1560故答案为:1072,481,9,517,1596,1560.