starter Set 80 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [11, 8] → [4, _, 1]

Show answer

Answer: Row1[1]=19, Row3[2]=7

SubType
number-pyramid
Difficulty
starter
Levels
  • [19]
  • [11,8]
  • [4,7,1]
Base
  • 4
  • 7
  • 1
TopValue
19
HiddenCells
  • {"r":0,"c":0,"v":19}
  • {"r":2,"c":1,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [6, 6] → [_, 1, 5]

Show answer

Answer: Row3[1]=5, Row1[1]=12

SubType
number-pyramid
Difficulty
starter
Levels
  • [12]
  • [6,6]
  • [5,1,5]
Base
  • 5
  • 1
  • 5
TopValue
12
HiddenCells
  • {"r":2,"c":0,"v":5}
  • {"r":0,"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): [27] → [16, _] → [9, 7, _]

Show answer

Answer: Row2[2]=11, Row3[3]=4

SubType
number-pyramid
Difficulty
starter
Levels
  • [27]
  • [16,11]
  • [9,7,4]
Base
  • 9
  • 7
  • 4
TopValue
27
HiddenCells
  • {"r":1,"c":1,"v":11}
  • {"r":2,"c":2,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [11, _] → [8, 3, 2]

Show answer

Answer: Row1[1]=16, Row2[2]=5

SubType
number-pyramid
Difficulty
starter
Levels
  • [16]
  • [11,5]
  • [8,3,2]
Base
  • 8
  • 3
  • 2
TopValue
16
HiddenCells
  • {"r":0,"c":0,"v":16}
  • {"r":1,"c":1,"v":5}