Use the following numbers in the right place.

50  10   20  70  30  120

1. ___ + ___ = 80

2. 50 +   ___ = 70

3. 70 -    ___ = 50

4. __ + 20     = 30

5. ___ + ____= 120

6. ___ + ____ = 40

Take the following numbers and add in a such a way where it will be   12 after addition .

1,2,3    and 4,5,6

For example : 6+5+1 = 12  

(Don't repeat the same number - like 5 +5+2=12)