expert Set 30 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 10] → [1, 2, 8]

Show answer

Answer: Row1[1]=13, Row2[1]=3

SubType
number-pyramid
Difficulty
expert
Levels
  • [13]
  • [3,10]
  • [1,2,8]
Base
  • 1
  • 2
  • 8
TopValue
13
HiddenCells
  • {"r":0,"c":0,"v":13}
  • {"r":1,"c":0,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [20] → [11, _] → [10, _, 8]

Show answer

Answer: Row2[2]=9, Row3[2]=1

SubType
number-pyramid
Difficulty
expert
Levels
  • [20]
  • [11,9]
  • [10,1,8]
Base
  • 10
  • 1
  • 8
TopValue
20
HiddenCells
  • {"r":1,"c":1,"v":9}
  • {"r":2,"c":1,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [6, 8] → [_, 1, 7]

Show answer

Answer: Row3[1]=5, Row1[1]=14

SubType
number-pyramid
Difficulty
expert
Levels
  • [14]
  • [6,8]
  • [5,1,7]
Base
  • 5
  • 1
  • 7
TopValue
14
HiddenCells
  • {"r":2,"c":0,"v":5}
  • {"r":0,"c":0,"v":14}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [27] → [15, _] → [_, 5, 7]

Show answer

Answer: Row3[1]=10, Row2[2]=12

SubType
number-pyramid
Difficulty
expert
Levels
  • [27]
  • [15,12]
  • [10,5,7]
Base
  • 10
  • 5
  • 7
TopValue
27
HiddenCells
  • {"r":2,"c":0,"v":10}
  • {"r":1,"c":1,"v":12}