easy Set 12 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [8, 13] → [3, _, 8]

Show answer

Answer: Row3[2]=5, Row1[1]=21

SubType
number-pyramid
Difficulty
easy
Levels
  • [21]
  • [8,13]
  • [3,5,8]
Base
  • 3
  • 5
  • 8
TopValue
21
HiddenCells
  • {"r":2,"c":1,"v":5}
  • {"r":0,"c":0,"v":21}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 11] → [9, 3, 8]

Show answer

Answer: Row1[1]=23, Row2[1]=12

SubType
number-pyramid
Difficulty
easy
Levels
  • [23]
  • [12,11]
  • [9,3,8]
Base
  • 9
  • 3
  • 8
TopValue
23
HiddenCells
  • {"r":0,"c":0,"v":23}
  • {"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): [19] → [10, _] → [2, _, 1]

Show answer

Answer: Row2[2]=9, Row3[2]=8

SubType
number-pyramid
Difficulty
easy
Levels
  • [19]
  • [10,9]
  • [2,8,1]
Base
  • 2
  • 8
  • 1
TopValue
19
HiddenCells
  • {"r":1,"c":1,"v":9}
  • {"r":2,"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): [23] → [13, _] → [4, 9, _]

Show answer

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

SubType
number-pyramid
Difficulty
easy
Levels
  • [23]
  • [13,10]
  • [4,9,1]
Base
  • 4
  • 9
  • 1
TopValue
23
HiddenCells
  • {"r":2,"c":2,"v":1}
  • {"r":1,"c":1,"v":10}