1
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [80] → [41, _] → [_, _, _] → [_, 12, 10, 7] → [1, _, _, 4, _] =
2
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 30] → [_, 17, _] → [13, _, 8, 5] → [9, 4, _, _, _] =
3
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [39, 29] → [20, _, 10] → [_, 11, _, _] → [_, 4, _, _, 1] =
4
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [83] → [_, _] → [_, 22, _] → [_, _, 10, 9] → [1, _, _, 5, 4] =