starter Set 40 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [11, 10] → [4, _, 3]

Show answer

Answer: Row1[1]=21, Row3[2]=7

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [11,10]
  • [4,7,3]
Base
  • 4
  • 7
  • 3
TopValue
21
HiddenCells
  • {"r":0,"c":0,"v":21}
  • {"r":2,"c":1,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [33] → [18, 15] → [_, 8, _]

Show answer

Answer: Row3[3]=7, Row3[1]=10

SubType
number-pyramid
Difficulty
starter
Levels
  • [33]
  • [18,15]
  • [10,8,7]
Base
  • 10
  • 8
  • 7
TopValue
33
HiddenCells
  • {"r":2,"c":2,"v":7}
  • {"r":2,"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): [25] → [_, 13] → [_, 8, 5]

Show answer

Answer: Row2[1]=12, Row3[1]=4

SubType
number-pyramid
Difficulty
starter
Levels
  • [25]
  • [12,13]
  • [4,8,5]
Base
  • 4
  • 8
  • 5
TopValue
25
HiddenCells
  • {"r":1,"c":0,"v":12}
  • {"r":2,"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): [_] → [_, 14] → [7, 4, 10]

Show answer

Answer: Row2[1]=11, Row1[1]=25

SubType
number-pyramid
Difficulty
starter
Levels
  • [25]
  • [11,14]
  • [7,4,10]
Base
  • 7
  • 4
  • 10
TopValue
25
HiddenCells
  • {"r":1,"c":0,"v":11}
  • {"r":0,"c":0,"v":25}