Subtraction Step 1: write the problem and stack so that the ones place lines up Step 2: start in the ones column and check: more on top, no need to stop; more on the floor, go next door Step 3: move to the tens column and check: more on top, no need to stop; more on the floor, go next door Step 4: check by adding
Name: ______________
1 .
4
5
2
-
7
8
3.
4
2 .
4.
3
14
4
5
12
-
7
8
3
7
4
+1
+1
3
7
4
4
5
12
-
7
8
+
7
8
4
4
5
2
Subtraction
Name: ______________