1
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [74] → [36, _] → [20, _, _] → [12, _, _, 14] → [7, _, _, _, 9] =
2
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [131] → [64, _] → [_, _, _] → [_, 16, 16, 19] → [7, 9, _, _, _] =
3
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, 18, _] → [8, 8, _, 10] → [7, 1, _, 3, _] =
4
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [117] → [_, _] → [_, 31, _] → [_, _, 14, 10] → [6, 8, _, _, 5] =