expert Set 86 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [8, _] → [2, 6, 1]

Show answer

Answer: Row2[2]=7, Row1[1]=15

SubType
number-pyramid
Difficulty
expert
Levels
  • [15]
  • [8,7]
  • [2,6,1]
Base
  • 2
  • 6
  • 1
TopValue
15
HiddenCells
  • {"r":1,"c":1,"v":7}
  • {"r":0,"c":0,"v":15}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [19] → [_, 8] → [_, 3, 5]

Show answer

Answer: Row2[1]=11, Row3[1]=8

SubType
number-pyramid
Difficulty
expert
Levels
  • [19]
  • [11,8]
  • [8,3,5]
Base
  • 8
  • 3
  • 5
TopValue
19
HiddenCells
  • {"r":1,"c":0,"v":11}
  • {"r":2,"c":0,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [32] → [_, 16] → [8, _, 8]

Show answer

Answer: Row3[2]=8, Row2[1]=16

SubType
number-pyramid
Difficulty
expert
Levels
  • [32]
  • [16,16]
  • [8,8,8]
Base
  • 8
  • 8
  • 8
TopValue
32
HiddenCells
  • {"r":2,"c":1,"v":8}
  • {"r":1,"c":0,"v":16}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [15, 10] → [6, 9, _]

Show answer

Answer: Row3[3]=1, Row1[1]=25

SubType
number-pyramid
Difficulty
expert
Levels
  • [25]
  • [15,10]
  • [6,9,1]
Base
  • 6
  • 9
  • 1
TopValue
25
HiddenCells
  • {"r":2,"c":2,"v":1}
  • {"r":0,"c":0,"v":25}