starter Set 73 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [13, 12] → [8, _, 7]

Show answer

Answer: Row1[1]=25, Row3[2]=5

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

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [8] → [_, 4] → [2, 2, _]

Show answer

Answer: Row3[3]=2, Row2[1]=4

SubType
number-pyramid
Difficulty
starter
Levels
  • [8]
  • [4,4]
  • [2,2,2]
Base
  • 2
  • 2
  • 2
TopValue
8
HiddenCells
  • {"r":2,"c":2,"v":2}
  • {"r":1,"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): [_] → [7, 8] → [_, 5, 3]

Show answer

Answer: Row3[1]=2, Row1[1]=15

SubType
number-pyramid
Difficulty
starter
Levels
  • [15]
  • [7,8]
  • [2,5,3]
Base
  • 2
  • 5
  • 3
TopValue
15
HiddenCells
  • {"r":2,"c":0,"v":2}
  • {"r":0,"c":0,"v":15}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [20] → [13, _] → [_, 3, 4]

Show answer

Answer: Row2[2]=7, Row3[1]=10

SubType
number-pyramid
Difficulty
starter
Levels
  • [20]
  • [13,7]
  • [10,3,4]
Base
  • 10
  • 3
  • 4
TopValue
20
HiddenCells
  • {"r":1,"c":1,"v":7}
  • {"r":2,"c":0,"v":10}