Current location - Training Enrollment Network - Mathematics courses - Math problems, 1- 1 1 numbers, in groups of 5! How many groups and values are equal to 30?
Math problems, 1- 1 1 numbers, in groups of 5! How many groups and values are equal to 30?
1 1+ 10+6+2+ 1

1 1+ 10+5+3+ 1

1 1+ 10+4+3+2

1 1+9+7+2+ 1

1 1+9+6+3+ 1

1 1+9+5+4+ 1

1 1+9+5+3+2

1 1+8+7+3+ 1

1 1+8+6+4+2

1 1+8+6+3+2

1 1+7+6+5+ 1

1 1+7+6+4+2

1 1+7+5+4+3

*** 13 combination