Add
10+5
15
10-5
5
Is it true that 5+5=9+1?
True.
10+3
13
20-10
10
Is it true that 5+5 equals 20?
No 5+5 equals 10.
5+8
13
10-8
2
Is it true that 10+5 equals 15?
True.
20+8=
28
20-20
0
Is it true that 20-10 equals 15?
No because 20-10 equals 10.
100+0
100
100-100
0
Is it true that 20+4 equals 25?
No because 20+4 equals 24.