starter Set 21 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [17] → [5, _] → [3, _, 10]

Show answer

Answer: Row2[2]=12, Row3[2]=2

SubType
number-pyramid
Difficulty
starter
Levels
  • [17]
  • [5,12]
  • [3,2,10]
Base
  • 3
  • 2
  • 10
TopValue
17
HiddenCells
  • {"r":1,"c":1,"v":12}
  • {"r":2,"c":1,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [32] → [17, _] → [10, _, 8]

Show answer

Answer: Row2[2]=15, Row3[2]=7

SubType
number-pyramid
Difficulty
starter
Levels
  • [32]
  • [17,15]
  • [10,7,8]
Base
  • 10
  • 7
  • 8
TopValue
32
HiddenCells
  • {"r":1,"c":1,"v":15}
  • {"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): [_] → [10, _] → [5, 5, 4]

Show answer

Answer: Row2[2]=9, Row1[1]=19

SubType
number-pyramid
Difficulty
starter
Levels
  • [19]
  • [10,9]
  • [5,5,4]
Base
  • 5
  • 5
  • 4
TopValue
19
HiddenCells
  • {"r":1,"c":1,"v":9}
  • {"r":0,"c":0,"v":19}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 14] → [1, 9, 5]

Show answer

Answer: Row2[1]=10, Row1[1]=24

SubType
number-pyramid
Difficulty
starter
Levels
  • [24]
  • [10,14]
  • [1,9,5]
Base
  • 1
  • 9
  • 5
TopValue
24
HiddenCells
  • {"r":1,"c":0,"v":10}
  • {"r":0,"c":0,"v":24}