medium Set 90 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [37] → [_, _] → [2, 11, _] → [1, _, 10, 3]

Show answer

Answer: Row3[3]=13, Row2[1]=13, Row2[2]=24, Row4[2]=1

SubType
number-pyramid
Difficulty
medium
Levels
  • [37]
  • [13,24]
  • [2,11,13]
  • [1,1,10,3]
Base
  • 1
  • 1
  • 10
  • 3
TopValue
37
HiddenCells
  • {"r":2,"c":2,"v":13}
  • {"r":1,"c":0,"v":13}
  • {"r":1,"c":1,"v":24}
  • {"r":3,"c":1,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [59] → [_, 26] → [_, 17, 9] → [7, _, 8, _]

Show answer

Answer: Row3[1]=16, Row4[2]=9, Row2[1]=33, Row4[4]=1

SubType
number-pyramid
Difficulty
medium
Levels
  • [59]
  • [33,26]
  • [16,17,9]
  • [7,9,8,1]
Base
  • 7
  • 9
  • 8
  • 1
TopValue
59
HiddenCells
  • {"r":2,"c":0,"v":16}
  • {"r":3,"c":1,"v":9}
  • {"r":1,"c":0,"v":33}
  • {"r":3,"c":3,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 18] → [_, 12, 6] → [3, _, 3, 3]

Show answer

Answer: Row1[1]=42, Row2[1]=24, Row4[2]=9, Row3[1]=12

SubType
number-pyramid
Difficulty
medium
Levels
  • [42]
  • [24,18]
  • [12,12,6]
  • [3,9,3,3]
Base
  • 3
  • 9
  • 3
  • 3
TopValue
42
HiddenCells
  • {"r":0,"c":0,"v":42}
  • {"r":1,"c":0,"v":24}
  • {"r":3,"c":1,"v":9}
  • {"r":2,"c":0,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [49] → [27, 22] → [_, _, _] → [5, 8, _, 2]

Show answer

Answer: Row3[1]=13, Row4[3]=6, Row3[3]=8, Row3[2]=14

SubType
number-pyramid
Difficulty
medium
Levels
  • [49]
  • [27,22]
  • [13,14,8]
  • [5,8,6,2]
Base
  • 5
  • 8
  • 6
  • 2
TopValue
49
HiddenCells
  • {"r":2,"c":0,"v":13}
  • {"r":3,"c":2,"v":6}
  • {"r":2,"c":2,"v":8}
  • {"r":2,"c":1,"v":14}