starter Set 36 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [20] → [_, 8] → [7, 5, _]

Show answer

Answer: Row2[1]=12, Row3[3]=3

SubType
number-pyramid
Difficulty
starter
Levels
  • [20]
  • [12,8]
  • [7,5,3]
Base
  • 7
  • 5
  • 3
TopValue
20
HiddenCells
  • {"r":1,"c":0,"v":12}
  • {"r":2,"c":2,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [21] → [_, 11] → [3, 7, _]

Show answer

Answer: Row3[3]=4, Row2[1]=10

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [10,11]
  • [3,7,4]
Base
  • 3
  • 7
  • 4
TopValue
21
HiddenCells
  • {"r":2,"c":2,"v":4}
  • {"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): [_] → [10, 16] → [_, 8, 8]

Show answer

Answer: Row1[1]=26, Row3[1]=2

SubType
number-pyramid
Difficulty
starter
Levels
  • [26]
  • [10,16]
  • [2,8,8]
Base
  • 2
  • 8
  • 8
TopValue
26
HiddenCells
  • {"r":0,"c":0,"v":26}
  • {"r":2,"c":0,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [18] → [8, 10] → [2, _, _]

Show answer

Answer: Row3[2]=6, Row3[3]=4

SubType
number-pyramid
Difficulty
starter
Levels
  • [18]
  • [8,10]
  • [2,6,4]
Base
  • 2
  • 6
  • 4
TopValue
18
HiddenCells
  • {"r":2,"c":1,"v":6}
  • {"r":2,"c":2,"v":4}