easy 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): [32] → [19, _] → [_, 9, 4]

Show answer

Answer: Row3[1]=10, Row2[2]=13

SubType
number-pyramid
Difficulty
easy
Levels
  • [32]
  • [19,13]
  • [10,9,4]
Base
  • 10
  • 9
  • 4
TopValue
32
HiddenCells
  • {"r":2,"c":0,"v":10}
  • {"r":1,"c":1,"v":13}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [20, 19] → [_, 10, 9]

Show answer

Answer: Row1[1]=39, Row3[1]=10

SubType
number-pyramid
Difficulty
easy
Levels
  • [39]
  • [20,19]
  • [10,10,9]
Base
  • 10
  • 10
  • 9
TopValue
39
HiddenCells
  • {"r":0,"c":0,"v":39}
  • {"r":2,"c":0,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [29] → [11, 18] → [_, 9, _]

Show answer

Answer: Row3[3]=9, Row3[1]=2

SubType
number-pyramid
Difficulty
easy
Levels
  • [29]
  • [11,18]
  • [2,9,9]
Base
  • 2
  • 9
  • 9
TopValue
29
HiddenCells
  • {"r":2,"c":2,"v":9}
  • {"r":2,"c":0,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [17] → [6, _] → [2, 4, _]

Show answer

Answer: Row3[3]=7, Row2[2]=11

SubType
number-pyramid
Difficulty
easy
Levels
  • [17]
  • [6,11]
  • [2,4,7]
Base
  • 2
  • 4
  • 7
TopValue
17
HiddenCells
  • {"r":2,"c":2,"v":7}
  • {"r":1,"c":1,"v":11}