1
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [46] → [_, 20] → [_, _, 7] → [_, _, _, _] → [1, 4, 4, _, 1] =
2
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [136] → [64, 72] → [28, _, 36] → [_, _, _, _] → [_, _, _, 8, 10] =
3
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, _, 21] → [_, 10, _, _] → [2, 9, 1, 6, 8] =
4
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [103] → [56, 47] → [_, _, 21] → [_, _, _, _] → [8, 8, _, _, 3] =