1
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 67] → [_, 29, 38] → [9, _, _, _] → [6, _, 8, _, 10] =
2
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [40, 27] → [_, 17, _] → [11, _, 5, 5] → [_, 9, _, _, _] =
3
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [23, _, 28] → [11, 12, _, 17] → [_, 8, _, 7, _] =
4
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [56] → [30, _] → [17, _, 13] → [_, _, 7, _] → [9, _, _, 3, _] =