: - - -

- - - -












** **



** **






500 ** + 70 **


:
9+3 = = 13-6

=3+8 8-6=

=6+6 8-6 =

=9+10 10-5 =

=5+4 17-9 =

=7+7 7-5 =

=13+2 10-3 =




87 74
42 522
32 666
48 123
28 529
63 147
91 752
111 889
518 44
640 16
224 678
555 422