1
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [38, _] → [18, 20, 20] → [_, 10, _, _] → [_, _, _, 5, 5] =
2
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 45] → [30, _, 20] → [_, _, _, 9] → [10, 6, _, _, 6] =
3
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [79] → [_, _] → [_, _, 31] → [_, 5, _, _] → [6, 3, _, 10, 9] =
4
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [65] → [26, _] → [10, 16, 23] → [_, _, 12, _] → [_, _, _, _, 2] =