starter Set 67 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [23] → [_, _] → [2, 10, 1]

Show answer

Answer: Row2[1]=12, Row2[2]=11

SubType
number-pyramid
Difficulty
starter
Levels
  • [23]
  • [12,11]
  • [2,10,1]
Base
  • 2
  • 10
  • 1
TopValue
23
HiddenCells
  • {"r":1,"c":0,"v":12}
  • {"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): [_] → [9, _] → [2, 7, 9]

Show answer

Answer: Row2[2]=16, Row1[1]=25

SubType
number-pyramid
Difficulty
starter
Levels
  • [25]
  • [9,16]
  • [2,7,9]
Base
  • 2
  • 7
  • 9
TopValue
25
HiddenCells
  • {"r":1,"c":1,"v":16}
  • {"r":0,"c":0,"v":25}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [15, 13] → [7, 8, _]

Show answer

Answer: Row3[3]=5, Row1[1]=28

SubType
number-pyramid
Difficulty
starter
Levels
  • [28]
  • [15,13]
  • [7,8,5]
Base
  • 7
  • 8
  • 5
TopValue
28
HiddenCells
  • {"r":2,"c":2,"v":5}
  • {"r":0,"c":0,"v":28}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [11, _] → [6, 5, 7]

Show answer

Answer: Row1[1]=23, Row2[2]=12

SubType
number-pyramid
Difficulty
starter
Levels
  • [23]
  • [11,12]
  • [6,5,7]
Base
  • 6
  • 5
  • 7
TopValue
23
HiddenCells
  • {"r":0,"c":0,"v":23}
  • {"r":1,"c":1,"v":12}