All from nine and the last from ten
1000-357 = (9-3)(9-5)(10-7) = 643
1000-64 = 1000-064 = (9-0)(9-6)(10-4) = 936
1000-64 = 1000-064 = (9-0)(9-6)(10-4) = 936
1000 -908 = (9-9)(9-0)(10-8) = 092
1000 -343 = (9-3)(9-4)(10-3) = 657
10000- 435 = 10000-0435 =(9-0)(9-4)(9-3)(9-5)= 9564