expert Set 39 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [19] → [13, _] → [_, 5, 1]

Show answer

Answer: Row3[1]=8, Row2[2]=6

SubType
number-pyramid
Difficulty
expert
Levels
  • [19]
  • [13,6]
  • [8,5,1]
Base
  • 8
  • 5
  • 1
TopValue
19
HiddenCells
  • {"r":2,"c":0,"v":8}
  • {"r":1,"c":1,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [11, 10] → [_, 4, 6]

Show answer

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

SubType
number-pyramid
Difficulty
expert
Levels
  • [21]
  • [11,10]
  • [7,4,6]
Base
  • 7
  • 4
  • 6
TopValue
21
HiddenCells
  • {"r":2,"c":0,"v":7}
  • {"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): [17] → [9, 8] → [_, 7, _]

Show answer

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

SubType
number-pyramid
Difficulty
expert
Levels
  • [17]
  • [9,8]
  • [2,7,1]
Base
  • 2
  • 7
  • 1
TopValue
17
HiddenCells
  • {"r":2,"c":2,"v":1}
  • {"r":2,"c":0,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [18] → [_, 8] → [8, 2, _]

Show answer

Answer: Row2[1]=10, Row3[3]=6

SubType
number-pyramid
Difficulty
expert
Levels
  • [18]
  • [10,8]
  • [8,2,6]
Base
  • 8
  • 2
  • 6
TopValue
18
HiddenCells
  • {"r":1,"c":0,"v":10}
  • {"r":2,"c":2,"v":6}