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): [31] → [15, _] → [_, 6, 10]

Show answer

Answer: Row3[1]=9, Row2[2]=16

SubType
number-pyramid
Difficulty
expert
Levels
  • [31]
  • [15,16]
  • [9,6,10]
Base
  • 9
  • 6
  • 10
TopValue
31
HiddenCells
  • {"r":2,"c":0,"v":9}
  • {"r":1,"c":1,"v":16}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [9, 9] → [_, 3, 6]

Show answer

Answer: Row3[1]=6, Row1[1]=18

SubType
number-pyramid
Difficulty
expert
Levels
  • [18]
  • [9,9]
  • [6,3,6]
Base
  • 6
  • 3
  • 6
TopValue
18
HiddenCells
  • {"r":2,"c":0,"v":6}
  • {"r":0,"c":0,"v":18}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 10] → [3, 1, 9]

Show answer

Answer: Row2[1]=4, Row1[1]=14

SubType
number-pyramid
Difficulty
expert
Levels
  • [14]
  • [4,10]
  • [3,1,9]
Base
  • 3
  • 1
  • 9
TopValue
14
HiddenCells
  • {"r":1,"c":0,"v":4}
  • {"r":0,"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): [_] → [11, _] → [4, 7, 7]

Show answer

Answer: Row1[1]=25, Row2[2]=14

SubType
number-pyramid
Difficulty
expert
Levels
  • [25]
  • [11,14]
  • [4,7,7]
Base
  • 4
  • 7
  • 7
TopValue
25
HiddenCells
  • {"r":0,"c":0,"v":25}
  • {"r":1,"c":1,"v":14}