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): [_] → [4, 8] → [_, 2, 6]

Show answer

Answer: Row1[1]=12, Row3[1]=2

SubType
number-pyramid
Difficulty
starter
Levels
  • [12]
  • [4,8]
  • [2,2,6]
Base
  • 2
  • 2
  • 6
TopValue
12
HiddenCells
  • {"r":0,"c":0,"v":12}
  • {"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): [19] → [10, _] → [8, _, 7]

Show answer

Answer: Row2[2]=9, Row3[2]=2

SubType
number-pyramid
Difficulty
starter
Levels
  • [19]
  • [10,9]
  • [8,2,7]
Base
  • 8
  • 2
  • 7
TopValue
19
HiddenCells
  • {"r":1,"c":1,"v":9}
  • {"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): [13] → [_, 5] → [_, 4, 1]

Show answer

Answer: Row3[1]=4, Row2[1]=8

SubType
number-pyramid
Difficulty
starter
Levels
  • [13]
  • [8,5]
  • [4,4,1]
Base
  • 4
  • 4
  • 1
TopValue
13
HiddenCells
  • {"r":2,"c":0,"v":4}
  • {"r":1,"c":0,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [19] → [_, 10] → [2, 7, _]

Show answer

Answer: Row2[1]=9, Row3[3]=3

SubType
number-pyramid
Difficulty
starter
Levels
  • [19]
  • [9,10]
  • [2,7,3]
Base
  • 2
  • 7
  • 3
TopValue
19
HiddenCells
  • {"r":1,"c":0,"v":9}
  • {"r":2,"c":2,"v":3}