1
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [51] → [_, 25] → [11, 15, 10] → [_, _, _, 5] =
2
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [66] → [_, 34] → [15, 17, 17] → [_, _, 9, _] =
3
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 18] → [9, _, 9] → [2, 7, _, 7] =
4
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 16] → [12, 10, _] → [7, _, 5, 1] =