Question

把1-9九个数字填在()里,使算式成立()乘()()=()()()=()()乘() 数字不重复

Answer 1

()×()() = ()()() = ()()×()

2×78 = 156 = 39×4

3×58 = 174 = 29×6

等号前后的乘式可以调换着写