starter Set 16 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [7, _] → [5, 2, 1]

Show answer

Answer: Row2[2]=3, Row1[1]=10

SubType
number-pyramid
Difficulty
starter
Levels
  • [10]
  • [7,3]
  • [5,2,1]
Base
  • 5
  • 2
  • 1
TopValue
10
HiddenCells
  • {"r":1,"c":1,"v":3}
  • {"r":0,"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): [12] → [_, 7] → [1, 4, _]

Show answer

Answer: Row3[3]=3, Row2[1]=5

SubType
number-pyramid
Difficulty
starter
Levels
  • [12]
  • [5,7]
  • [1,4,3]
Base
  • 1
  • 4
  • 3
TopValue
12
HiddenCells
  • {"r":2,"c":2,"v":3}
  • {"r":1,"c":0,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [11, 5] → [8, 3, _]

Show answer

Answer: Row3[3]=2, Row1[1]=16

SubType
number-pyramid
Difficulty
starter
Levels
  • [16]
  • [11,5]
  • [8,3,2]
Base
  • 8
  • 3
  • 2
TopValue
16
HiddenCells
  • {"r":2,"c":2,"v":2}
  • {"r":0,"c":0,"v":16}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [21] → [7, _] → [_, 4, 10]

Show answer

Answer: Row2[2]=14, Row3[1]=3

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [7,14]
  • [3,4,10]
Base
  • 3
  • 4
  • 10
TopValue
21
HiddenCells
  • {"r":1,"c":1,"v":14}
  • {"r":2,"c":0,"v":3}