Zero
0-0=0
One
1-0=1 1-1=0
Two
2-0=2 2-1=1 2-2=0
Three
3-0=3 3-1=2 3-2=1 3-3=0
Four
4-0=4 4-1=3 4-2=2 4-3=1 4-4=0
Five
5-0=5 5-1=4 5-2=3 5-3=2 5-4=1
5-5=0
Six
6-0=6 6-1=5 6-2=4 6-3=3 6-4=2
6-5=1 6-5=1
Seven
7-0=7 7-1=6 7-2=5 7-3=4 7-4=3
7-5=2 7-6=1 7-7=0
Eight
8-0=8 8-1=7 8-2=6 8-3=5 8-4=4
8-5=3 8-6=2 8-7=1 8-8=0
Nine
9-0=9 9-1=8 9-2=7 9-3=6 9-4=5
9-5=4 9-6=3 9-7=2 9-8=1 9-9=0
Ten
10-0=10 10-1=9 10-2=8 10-3=7 10-4=6
10-5=5 10-6=4 10-7=3 10-8=2 10-9=1
10-10=0
Eleven
11-1=10 11-2=9 11-3=8 11-4=7 11-5=6
11-6=5 11-7=4 11-8=3 11-9=2 11-10=1
Twelve
12-2=10 12-3=9 12-4=8 12-5=7 12-6=6
12-7=5 12-8=4 12-9=3 12-10=2
Thirteen
13-3=10 13-4=9 13-5=8 13-6=7 13-7=6
13-8=5 13-9=4 13-10=3
Fourteen
14-4=10 14-5=9 14-6=8 14-7=7 14-8=6
14-9=5 14-10=4
Fifteen
15-5=10 15-6=9 15-7=8 15-8=7 15-9=6
15-10=5
Sixteen
16-6=10 16-7=9 16-8=8 16-9=7 16-10=6
Seventeen
17-7=10 17-8=9 17-9=8 17-10=7
Eighteen
18-8=10 18-9=9 18-10=8
Nineteen
19-9=10 19-10=9
Twenty
20-10=10
An example of subtraction. 8 - 5 = 3
5 + 3 = 8
1 2 3 4 5 6 7 8 -
1 2 3 4 5 = 1 2 3
What is the Difference Between the two Numbers?
