1
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [17, _, 23] → [_, 9, _, 12] → [7, _, 8, _, 9] =
2
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [85] → [47, _] → [_, _, _] → [_, _, 9, 8] → [9, _, 7, 2, _] =
3
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [102] → [_, 54] → [_, 25, _] → [12, _, _, _] → [_, 6, 5, 9, _] =
4
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [101] → [53, _] → [_, 27, _] → [_, _, 14, _] → [_, 4, 9, 5, _] =