1
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [79] → [_, _] → [_, _, _] → [_, 8, 10, _] → [10, _, 5, 5, 7] =
2
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 20] → [_, 15, 5] → [19, _, _, _] → [9, _, 2, 1, _] =
3
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [63] → [35, 28] → [19, 16, _] → [_, _, 8, _] → [8, _, _, _, _] =
4
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [18, _] → [_, _, _] → [_, _, 3, 2] → [_, 1, 2, 1, 1] =