1
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [54] → [17, _] → [6, 11, _] → [4, _, _, _] → [3, _, _, _, 9] =
2
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, _, 20] → [_, 13, 12, _] → [8, _, 5, 7, 1] =
3
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 54] → [19, _, 30] → [11, 8, 16, 14] → [_, _, _, _, _] =
4
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [39, _] → [_, 23, _] → [5, _, 12, _] → [4, 1, 10, _, _] =