starter Set 57 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [31] → [19, 12] → [_, 10, _]

Show answer

Answer: Row3[3]=2, Row3[1]=9

SubType
number-pyramid
Difficulty
starter
Levels
  • [31]
  • [19,12]
  • [9,10,2]
Base
  • 9
  • 10
  • 2
TopValue
31
HiddenCells
  • {"r":2,"c":2,"v":2}
  • {"r":2,"c":0,"v":9}

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

Show answer

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [4]
  • [2,2]
  • [1,1,1]
Base
  • 1
  • 1
  • 1
TopValue
4
HiddenCells
  • {"r":1,"c":0,"v":2}
  • {"r":1,"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): [24] → [_, _] → [4, 6, 8]

Show answer

Answer: Row2[1]=10, Row2[2]=14

SubType
number-pyramid
Difficulty
starter
Levels
  • [24]
  • [10,14]
  • [4,6,8]
Base
  • 4
  • 6
  • 8
TopValue
24
HiddenCells
  • {"r":1,"c":0,"v":10}
  • {"r":1,"c":1,"v":14}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [18] → [_, 7] → [5, _, 1]

Show answer

Answer: Row3[2]=6, Row2[1]=11

SubType
number-pyramid
Difficulty
starter
Levels
  • [18]
  • [11,7]
  • [5,6,1]
Base
  • 5
  • 6
  • 1
TopValue
18
HiddenCells
  • {"r":2,"c":1,"v":6}
  • {"r":1,"c":0,"v":11}