starter Set 37 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [23] → [12, _] → [9, _, 8]

Show answer

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [23]
  • [12,11]
  • [9,3,8]
Base
  • 9
  • 3
  • 8
TopValue
23
HiddenCells
  • {"r":2,"c":1,"v":3}
  • {"r":1,"c":1,"v":11}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [33] → [17, _] → [8, 9, _]

Show answer

Answer: Row2[2]=16, Row3[3]=7

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

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [14] → [7, 7] → [_, _, 6]

Show answer

Answer: Row3[2]=1, Row3[1]=6

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

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [13] → [_, 5] → [5, 3, _]

Show answer

Answer: Row3[3]=2, Row2[1]=8

SubType
number-pyramid
Difficulty
starter
Levels
  • [13]
  • [8,5]
  • [5,3,2]
Base
  • 5
  • 3
  • 2
TopValue
13
HiddenCells
  • {"r":2,"c":2,"v":2}
  • {"r":1,"c":0,"v":8}