expert Set 31 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [25] → [_, 9] → [_, 7, 2]

Show answer

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

SubType
number-pyramid
Difficulty
expert
Levels
  • [25]
  • [16,9]
  • [9,7,2]
Base
  • 9
  • 7
  • 2
TopValue
25
HiddenCells
  • {"r":1,"c":0,"v":16}
  • {"r":2,"c":0,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [20] → [12, 8] → [_, 4, _]

Show answer

Answer: Row3[3]=4, Row3[1]=8

SubType
number-pyramid
Difficulty
expert
Levels
  • [20]
  • [12,8]
  • [8,4,4]
Base
  • 8
  • 4
  • 4
TopValue
20
HiddenCells
  • {"r":2,"c":2,"v":4}
  • {"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): [19] → [_, _] → [9, 4, 2]

Show answer

Answer: Row2[2]=6, Row2[1]=13

SubType
number-pyramid
Difficulty
expert
Levels
  • [19]
  • [13,6]
  • [9,4,2]
Base
  • 9
  • 4
  • 2
TopValue
19
HiddenCells
  • {"r":1,"c":1,"v":6}
  • {"r":1,"c":0,"v":13}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [12, 13] → [2, _, 3]

Show answer

Answer: Row3[2]=10, Row1[1]=25

SubType
number-pyramid
Difficulty
expert
Levels
  • [25]
  • [12,13]
  • [2,10,3]
Base
  • 2
  • 10
  • 3
TopValue
25
HiddenCells
  • {"r":2,"c":1,"v":10}
  • {"r":0,"c":0,"v":25}