starter Set 91 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [10] → [7, _] → [6, 1, _]

Show answer

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [10]
  • [7,3]
  • [6,1,2]
Base
  • 6
  • 1
  • 2
TopValue
10
HiddenCells
  • {"r":2,"c":2,"v":2}
  • {"r":1,"c":1,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [23] → [_, 11] → [2, 10, _]

Show answer

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [23]
  • [12,11]
  • [2,10,1]
Base
  • 2
  • 10
  • 1
TopValue
23
HiddenCells
  • {"r":2,"c":2,"v":1}
  • {"r":1,"c":0,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [32] → [13, 19] → [_, 9, _]

Show answer

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [32]
  • [13,19]
  • [4,9,10]
Base
  • 4
  • 9
  • 10
TopValue
32
HiddenCells
  • {"r":2,"c":2,"v":10}
  • {"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): [12] → [_, 7] → [4, _, 6]

Show answer

Answer: Row3[2]=1, Row2[1]=5

SubType
number-pyramid
Difficulty
starter
Levels
  • [12]
  • [5,7]
  • [4,1,6]
Base
  • 4
  • 1
  • 6
TopValue
12
HiddenCells
  • {"r":2,"c":1,"v":1}
  • {"r":1,"c":0,"v":5}