1
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [81] → [_, 41] → [22, 18, _] → [13, _, _, _] → [_, 5, 4, _, _] =
2
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [74, 58] → [39, _, _] → [19, _, 15, _] → [_, 10, 10, _, _] =
3
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 53] → [_, 24, _] → [_, _, 16, _] → [_, 2, 6, 10, 3] =
4
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [19, _, 17] → [7, _, _, 5] → [_, _, 9, 3, 2] =