starter Set 90 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [27] → [16, 11] → [_, _, 2]

Show answer

Answer: Row3[1]=7, Row3[2]=9

SubType
number-pyramid
Difficulty
starter
Levels
  • [27]
  • [16,11]
  • [7,9,2]
Base
  • 7
  • 9
  • 2
TopValue
27
HiddenCells
  • {"r":2,"c":0,"v":7}
  • {"r":2,"c":1,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [6, 7] → [1, _, 2]

Show answer

Answer: Row3[2]=5, Row1[1]=13

SubType
number-pyramid
Difficulty
starter
Levels
  • [13]
  • [6,7]
  • [1,5,2]
Base
  • 1
  • 5
  • 2
TopValue
13
HiddenCells
  • {"r":2,"c":1,"v":5}
  • {"r":0,"c":0,"v":13}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 8] → [8, 2, 6]

Show answer

Answer: Row2[1]=10, Row1[1]=18

SubType
number-pyramid
Difficulty
starter
Levels
  • [18]
  • [10,8]
  • [8,2,6]
Base
  • 8
  • 2
  • 6
TopValue
18
HiddenCells
  • {"r":1,"c":0,"v":10}
  • {"r":0,"c":0,"v":18}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [16] → [8, _] → [4, 4, _]

Show answer

Answer: Row2[2]=8, Row3[3]=4

SubType
number-pyramid
Difficulty
starter
Levels
  • [16]
  • [8,8]
  • [4,4,4]
Base
  • 4
  • 4
  • 4
TopValue
16
HiddenCells
  • {"r":1,"c":1,"v":8}
  • {"r":2,"c":2,"v":4}