1
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [49] → [_, 23] → [_, 12, 11] → [9, _, 7, _] → [_, _, 4, _, _] =
2
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [142] → [68, _] → [31, 37, 37] → [_, _, _, 19] → [_, _, _, _, 10] =
3
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [107] → [_, _] → [35, _, 22] → [20, _, 10, _] → [10, _, _, _, 7] =
4
Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [78] → [31, 47] → [12, _, _] → [_, _, 13, _] → [_, _, 3, _, 5] =