starter Set 87 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [16] → [_, 9] → [6, _, 8]

Show answer

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [16]
  • [7,9]
  • [6,1,8]
Base
  • 6
  • 1
  • 8
TopValue
16
HiddenCells
  • {"r":2,"c":1,"v":1}
  • {"r":1,"c":0,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [39] → [_, 19] → [10, 10, _]

Show answer

Answer: Row2[1]=20, Row3[3]=9

SubType
number-pyramid
Difficulty
starter
Levels
  • [39]
  • [20,19]
  • [10,10,9]
Base
  • 10
  • 10
  • 9
TopValue
39
HiddenCells
  • {"r":1,"c":0,"v":20}
  • {"r":2,"c":2,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [20] → [9, 11] → [_, 2, _]

Show answer

Answer: Row3[3]=9, Row3[1]=7

SubType
number-pyramid
Difficulty
starter
Levels
  • [20]
  • [9,11]
  • [7,2,9]
Base
  • 7
  • 2
  • 9
TopValue
20
HiddenCells
  • {"r":2,"c":2,"v":9}
  • {"r":2,"c":0,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [21] → [11, 10] → [_, 2, _]

Show answer

Answer: Row3[1]=9, Row3[3]=8

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [11,10]
  • [9,2,8]
Base
  • 9
  • 2
  • 8
TopValue
21
HiddenCells
  • {"r":2,"c":0,"v":9}
  • {"r":2,"c":2,"v":8}