147k views
2 votes
How many ways can you make 20 in addition and subtraction?

User Jaroslav
by
3.3k points

2 Answers

11 votes
1+19
2+18
3+17
4+16
5+15
6+14
7+13
8+12
9+11
10+10
User JacobE
by
3.6k points
2 votes

Toplama işlemi;

1+19,

2+18,

3+17,

4+16,

5+15,

6+14,

7+13,

8+12,

9+11,

10+10,

11+9

...

20 toplama işlemi bunun tam tersi çıkarma işleminde olacağına göre 20 de oradan 40 oluyor iyi dersler.

User Ndou
by
3.9k points