1
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [39, 31] → [_, _, _] → [_, 9, 5, _] → [10, _, _, 2, 10] =
2
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [23, 23, _] → [11, 12, _, _] → [3, 8, 4, _, _] =
3
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [67, _] → [34, _, _] → [_, 18, 15, _] → [6, _, _, 7, 8] =
4
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, 18, 10] → [13, _, 6, 4] → [_, 7, _, 1, _] =