1
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [30, _] → [_, 15, _] → [_, _, _, 10] → [6, _, 1, 9, 1] =
2
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [102] → [57, 45] → [_, _, _] → [20, _, _, 13] → [10, 10, _, _, _] =
3
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [42, _] → [_, _, 29] → [4, _, 16, 13] → [1, 3, _, _, _] =
4
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 26] → [_, 13, 13] → [_, 6, 7, _] → [_, 4, _, _, 1] =