starter Set 86 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 12] → [9, 6, 6]

Show answer

Answer: Row2[1]=15, Row1[1]=27

SubType
number-pyramid
Difficulty
starter
Levels
  • [27]
  • [15,12]
  • [9,6,6]
Base
  • 9
  • 6
  • 6
TopValue
27
HiddenCells
  • {"r":1,"c":0,"v":15}
  • {"r":0,"c":0,"v":27}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [26] → [_, 16] → [_, 9, 7]

Show answer

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [26]
  • [10,16]
  • [1,9,7]
Base
  • 1
  • 9
  • 7
TopValue
26
HiddenCells
  • {"r":2,"c":0,"v":1}
  • {"r":1,"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): [_] → [17, 14] → [9, 8, _]

Show answer

Answer: Row1[1]=31, Row3[3]=6

SubType
number-pyramid
Difficulty
starter
Levels
  • [31]
  • [17,14]
  • [9,8,6]
Base
  • 9
  • 8
  • 6
TopValue
31
HiddenCells
  • {"r":0,"c":0,"v":31}
  • {"r":2,"c":2,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [10] → [5, _] → [_, 2, 3]

Show answer

Answer: Row3[1]=3, Row2[2]=5

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