expert Set 28 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [21] → [_, 11] → [1, 9, _]

Show answer

Answer: Row2[1]=10, Row3[3]=2

SubType
number-pyramid
Difficulty
expert
Levels
  • [21]
  • [10,11]
  • [1,9,2]
Base
  • 1
  • 9
  • 2
TopValue
21
HiddenCells
  • {"r":1,"c":0,"v":10}
  • {"r":2,"c":2,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [26] → [_, 12] → [7, 7, _]

Show answer

Answer: Row3[3]=5, Row2[1]=14

SubType
number-pyramid
Difficulty
expert
Levels
  • [26]
  • [14,12]
  • [7,7,5]
Base
  • 7
  • 7
  • 5
TopValue
26
HiddenCells
  • {"r":2,"c":2,"v":5}
  • {"r":1,"c":0,"v":14}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [8] → [4, _] → [1, _, 1]

Show answer

Answer: Row3[2]=3, Row2[2]=4

SubType
number-pyramid
Difficulty
expert
Levels
  • [8]
  • [4,4]
  • [1,3,1]
Base
  • 1
  • 3
  • 1
TopValue
8
HiddenCells
  • {"r":2,"c":1,"v":3}
  • {"r":1,"c":1,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [8, 13] → [2, 6, _]

Show answer

Answer: Row3[3]=7, Row1[1]=21

SubType
number-pyramid
Difficulty
expert
Levels
  • [21]
  • [8,13]
  • [2,6,7]
Base
  • 2
  • 6
  • 7
TopValue
21
HiddenCells
  • {"r":2,"c":2,"v":7}
  • {"r":0,"c":0,"v":21}