Current location - Training Enrollment Network - Mathematics courses - Elementary school math problems, please help solve them. The solution is as simple as possible: there are 1g, 2g, 4g, 5g, 10g weights, which can be called as many or less different masses.
Elementary school math problems, please help solve them. The solution is as simple as possible: there are 1g, 2g, 4g, 5g, 10g weights, which can be called as many or less different masses.
1g-22g can be weighed out, that is, 22 kinds.

1= 1

2=2

3= 1+2

4=4

5=5

6=2+4

7=2+5

8= 1+2+5

9=4+5

10= 10

1 1= 1+ 10

12=2+ 10

13= 1+2+ 10

14=4+ 10

15=5+ 10

16= 1+5+ 10

17=2+5+ 10

18= 1+2+5+ 10

19=4+5+ 10

20= 1+4+5+ 10

2 1=2+4+5+ 10

22= 1+2+4+5+ 10