Recursive equation calculation problems in the fourth grade of primary school
For example: 485-(6× 4+32) = 485-(24+32) = 485-56 = 4291000-(500+499+1). = 1000 - 1000 = 0 365 1 × { 452 - [ 52 + ( 500 - 100 ) ] } = 365 1 × [ 452 - ( 52 + 400 ) ] = 365 1 × ( 452 - 452 ) = 365 1 × 0 = 0