1
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [72] → [_, 25] → [31, _, _] → [_, _, 4, 5] → [10, _, _, _, 4] =
2
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [55, 55] → [25, 30, _] → [_, _, 15, _] → [1, _, 6, _, _] =
3
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [36, 24] → [23, 13, 11] → [15, _, _, _] → [_, 6, _, _, _] =
4
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [59, 59] → [30, _, _] → [14, _, 13, _] → [4, _, _, 7, _] =