1
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [23, _, _] → [13, 10, 10, 12] → [_, _, 7, _, 9] =
2
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 31] → [_, _, _] → [_, 13, 5, 8] → [7, _, 4, 1, _] =
3
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [133] → [_, 71] → [28, 34, _] → [_, 14, _, _] → [_, 4, _, _, 7] =
4
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [72] → [40, 32] → [_, _, 13] → [_, _, 8, 5] → [_, 5, _, _, _] =