medium 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): [28] → [14, _] → [_, _, 7] → [_, 6, 1, 6]

Show answer

Answer: Row2[2]=14, Row3[2]=7, Row4[1]=1, Row3[1]=7

SubType
number-pyramid
Difficulty
medium
Levels
  • [28]
  • [14,14]
  • [7,7,7]
  • [1,6,1,6]
Base
  • 1
  • 6
  • 1
  • 6
TopValue
28
HiddenCells
  • {"r":1,"c":1,"v":14}
  • {"r":2,"c":1,"v":7}
  • {"r":3,"c":0,"v":1}
  • {"r":2,"c":0,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [39] → [_, _] → [4, 10, 15] → [3, 1, _, _]

Show answer

Answer: Row2[1]=14, Row4[4]=6, Row2[2]=25, Row4[3]=9

SubType
number-pyramid
Difficulty
medium
Levels
  • [39]
  • [14,25]
  • [4,10,15]
  • [3,1,9,6]
Base
  • 3
  • 1
  • 9
  • 6
TopValue
39
HiddenCells
  • {"r":1,"c":0,"v":14}
  • {"r":3,"c":3,"v":6}
  • {"r":1,"c":1,"v":25}
  • {"r":3,"c":2,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [50] → [20, _] → [_, _, _] → [7, 2, 9, 10]

Show answer

Answer: Row2[2]=30, Row3[2]=11, Row3[1]=9, Row3[3]=19

SubType
number-pyramid
Difficulty
medium
Levels
  • [50]
  • [20,30]
  • [9,11,19]
  • [7,2,9,10]
Base
  • 7
  • 2
  • 9
  • 10
TopValue
50
HiddenCells
  • {"r":1,"c":1,"v":30}
  • {"r":2,"c":1,"v":11}
  • {"r":2,"c":0,"v":9}
  • {"r":2,"c":2,"v":19}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [49] → [_, 29] → [_, 11, _] → [_, 2, 9, 9]

Show answer

Answer: Row4[1]=7, Row3[3]=18, Row2[1]=20, Row3[1]=9

SubType
number-pyramid
Difficulty
medium
Levels
  • [49]
  • [20,29]
  • [9,11,18]
  • [7,2,9,9]
Base
  • 7
  • 2
  • 9
  • 9
TopValue
49
HiddenCells
  • {"r":3,"c":0,"v":7}
  • {"r":2,"c":2,"v":18}
  • {"r":1,"c":0,"v":20}
  • {"r":2,"c":0,"v":9}