1
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [28] → [13, _] → [_, 7, _] → [1, 5, _, 6] =
2
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [34, _] → [_, 20, 16] → [_, 10, 10, 6] =
3
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [27, 18] → [_, 13, _] → [4, _, 3, 2] =
4
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [14, 19] → [_, _, _] → [6, 2, 4, 9] =