easy Set 81 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [23] → [15, _] → [_, 5, 3]

Show answer

Answer: Row3[1]=10, Row2[2]=8

SubType
number-pyramid
Difficulty
easy
Levels
  • [23]
  • [15,8]
  • [10,5,3]
Base
  • 10
  • 5
  • 3
TopValue
23
HiddenCells
  • {"r":2,"c":0,"v":10}
  • {"r":1,"c":1,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [8, 15] → [_, 5, 10]

Show answer

Answer: Row3[1]=3, Row1[1]=23

SubType
number-pyramid
Difficulty
easy
Levels
  • [23]
  • [8,15]
  • [3,5,10]
Base
  • 3
  • 5
  • 10
TopValue
23
HiddenCells
  • {"r":2,"c":0,"v":3}
  • {"r":0,"c":0,"v":23}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [26] → [_, 14] → [6, _, 8]

Show answer

Answer: Row3[2]=6, Row2[1]=12

SubType
number-pyramid
Difficulty
easy
Levels
  • [26]
  • [12,14]
  • [6,6,8]
Base
  • 6
  • 6
  • 8
TopValue
26
HiddenCells
  • {"r":2,"c":1,"v":6}
  • {"r":1,"c":0,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [13, 19] → [4, 9, _]

Show answer

Answer: Row1[1]=32, Row3[3]=10

SubType
number-pyramid
Difficulty
easy
Levels
  • [32]
  • [13,19]
  • [4,9,10]
Base
  • 4
  • 9
  • 10
TopValue
32
HiddenCells
  • {"r":0,"c":0,"v":32}
  • {"r":2,"c":2,"v":10}