starter Set 17 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [21] → [_, 13] → [5, 3, _]

Show answer

Answer: Row3[3]=10, Row2[1]=8

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [8,13]
  • [5,3,10]
Base
  • 5
  • 3
  • 10
TopValue
21
HiddenCells
  • {"r":2,"c":2,"v":10}
  • {"r":1,"c":0,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [11, _] → [1, 10, 5]

Show answer

Answer: Row1[1]=26, Row2[2]=15

SubType
number-pyramid
Difficulty
starter
Levels
  • [26]
  • [11,15]
  • [1,10,5]
Base
  • 1
  • 10
  • 5
TopValue
26
HiddenCells
  • {"r":0,"c":0,"v":26}
  • {"r":1,"c":1,"v":15}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [14] → [11, 3] → [_, 2, _]

Show answer

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [14]
  • [11,3]
  • [9,2,1]
Base
  • 9
  • 2
  • 1
TopValue
14
HiddenCells
  • {"r":2,"c":0,"v":9}
  • {"r":2,"c":2,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [24] → [12, _] → [_, 7, 5]

Show answer

Answer: Row3[1]=5, Row2[2]=12

SubType
number-pyramid
Difficulty
starter
Levels
  • [24]
  • [12,12]
  • [5,7,5]
Base
  • 5
  • 7
  • 5
TopValue
24
HiddenCells
  • {"r":2,"c":0,"v":5}
  • {"r":1,"c":1,"v":12}