Answer:
First Part
(1) 867
(2) 1347
(3) 1045
(4) 693
Second Part
(1) 638
(2) 539
(3) 825
(4) 843
Step-by-step explanation:
FIRST PART, REGROUPING ONES
(1)
6 5 3
+
2 1 4
=
8 6 7
(2)
4 1 4
+
9 3 3
=
1 3 4 7
(3)
3 2 1
+
7 2 4
=
1 0 4 5
(4)
4 3 2
+
2 6 1
=
6 9 3
SECOND PART
(1)
1 8 6
+
4 5 2
=
6 3 8
(2)
3 7 4
+
1 6 5
=
5 3 9
(3)
1 7 2
+
6 5 3
=
8 2 5
(4)
3 9 1
+
4 5 2
=
8 4 3
