Resta de números de 4 dígitos pidiendo prestado

randRange(0, 9) randRange(0, 9) randRange(0, 9) randRange(1, 9) randRange(0, 9) randRange(0, 9) randRange(0, 9) randRange(1, 9) 1000 * A_1000 + 100 * A_100 + 10 * A_10 + A_1 1000 * B_1000 + 100 * B_100 + 10 * B_10 + B_1

[]

graph.subtractor=new Subtractor(A,B),graph.subtractor.show(),DUMMY=Array(graph.subtractor.getNumHints())

A - B

graph.subtractor.showHint()