hard Set 28 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [97] → [_, 52] → [21, _, _] → [9, _, 12, 16] → [_, _, _, _, 9]

Show answer

Answer: Row3[2]=24, Row4[2]=12, Row5[4]=7, Row5[1]=2, Row5[2]=7, Row3[3]=28, Row5[3]=5, Row2[1]=45

SubType
number-pyramid
Difficulty
hard
Levels
  • [97]
  • [45,52]
  • [21,24,28]
  • [9,12,12,16]
  • [2,7,5,7,9]
Base
  • 2
  • 7
  • 5
  • 7
  • 9
TopValue
97
HiddenCells
  • {"r":2,"c":1,"v":24}
  • {"r":3,"c":1,"v":12}
  • {"r":4,"c":3,"v":7}
  • {"r":4,"c":0,"v":2}
  • {"r":4,"c":1,"v":7}
  • {"r":2,"c":2,"v":28}
  • {"r":4,"c":2,"v":5}
  • {"r":1,"c":0,"v":45}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 41] → [_, _, 19] → [_, 12, _, 9] → [4, 10, 2, _, _]

Show answer

Answer: Row3[2]=22, Row3[1]=26, Row4[1]=14, Row5[4]=8, Row5[5]=1, Row1[1]=89, Row4[3]=10, Row2[1]=48

SubType
number-pyramid
Difficulty
hard
Levels
  • [89]
  • [48,41]
  • [26,22,19]
  • [14,12,10,9]
  • [4,10,2,8,1]
Base
  • 4
  • 10
  • 2
  • 8
  • 1
TopValue
89
HiddenCells
  • {"r":2,"c":1,"v":22}
  • {"r":2,"c":0,"v":26}
  • {"r":3,"c":0,"v":14}
  • {"r":4,"c":3,"v":8}
  • {"r":4,"c":4,"v":1}
  • {"r":0,"c":0,"v":89}
  • {"r":3,"c":2,"v":10}
  • {"r":1,"c":0,"v":48}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [123] → [67, _] → [36, 31, _] → [18, _, _, 12] → [_, 8, _, _, _]

Show answer

Answer: Row2[2]=56, Row5[3]=10, Row4[2]=18, Row5[5]=9, Row5[1]=10, Row3[3]=25, Row4[3]=13, Row5[4]=3

SubType
number-pyramid
Difficulty
hard
Levels
  • [123]
  • [67,56]
  • [36,31,25]
  • [18,18,13,12]
  • [10,8,10,3,9]
Base
  • 10
  • 8
  • 10
  • 3
  • 9
TopValue
123
HiddenCells
  • {"r":1,"c":1,"v":56}
  • {"r":4,"c":2,"v":10}
  • {"r":3,"c":1,"v":18}
  • {"r":4,"c":4,"v":9}
  • {"r":4,"c":0,"v":10}
  • {"r":2,"c":2,"v":25}
  • {"r":3,"c":2,"v":13}
  • {"r":4,"c":3,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [66, _] → [32, _, _] → [14, _, 16, _] → [4, 10, _, 8, _]

Show answer

Answer: Row5[5]=7, Row1[1]=131, Row3[3]=31, Row3[2]=34, Row4[2]=18, Row2[2]=65, Row4[4]=15, Row5[3]=8

SubType
number-pyramid
Difficulty
hard
Levels
  • [131]
  • [66,65]
  • [32,34,31]
  • [14,18,16,15]
  • [4,10,8,8,7]
Base
  • 4
  • 10
  • 8
  • 8
  • 7
TopValue
131
HiddenCells
  • {"r":4,"c":4,"v":7}
  • {"r":0,"c":0,"v":131}
  • {"r":2,"c":2,"v":31}
  • {"r":2,"c":1,"v":34}
  • {"r":3,"c":1,"v":18}
  • {"r":1,"c":1,"v":65}
  • {"r":3,"c":3,"v":15}
  • {"r":4,"c":2,"v":8}