starter Set 68 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [14, 7] → [8, 6, _]

Show answer

Answer: Row3[3]=1, Row1[1]=21

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [14,7]
  • [8,6,1]
Base
  • 8
  • 6
  • 1
TopValue
21
HiddenCells
  • {"r":2,"c":2,"v":1}
  • {"r":0,"c":0,"v":21}

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}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [17] → [_, _] → [1, 3, 10]

Show answer

Answer: Row2[2]=13, Row2[1]=4

SubType
number-pyramid
Difficulty
starter
Levels
  • [17]
  • [4,13]
  • [1,3,10]
Base
  • 1
  • 3
  • 10
TopValue
17
HiddenCells
  • {"r":1,"c":1,"v":13}
  • {"r":1,"c":0,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [8, 10] → [_, 2, 8]

Show answer

Answer: Row3[1]=6, Row1[1]=18

SubType
number-pyramid
Difficulty
starter
Levels
  • [18]
  • [8,10]
  • [6,2,8]
Base
  • 6
  • 2
  • 8
TopValue
18
HiddenCells
  • {"r":2,"c":0,"v":6}
  • {"r":0,"c":0,"v":18}