expert Set 25 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [13, 7] → [8, _, 2]

Show answer

Answer: Row3[2]=5, Row1[1]=20

SubType
number-pyramid
Difficulty
expert
Levels
  • [20]
  • [13,7]
  • [8,5,2]
Base
  • 8
  • 5
  • 2
TopValue
20
HiddenCells
  • {"r":2,"c":1,"v":5}
  • {"r":0,"c":0,"v":20}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 10] → [7, 2, 8]

Show answer

Answer: Row2[1]=9, Row1[1]=19

SubType
number-pyramid
Difficulty
expert
Levels
  • [19]
  • [9,10]
  • [7,2,8]
Base
  • 7
  • 2
  • 8
TopValue
19
HiddenCells
  • {"r":1,"c":0,"v":9}
  • {"r":0,"c":0,"v":19}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [16] → [8, _] → [1, 7, _]

Show answer

Answer: Row2[2]=8, Row3[3]=1

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

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [6, 10] → [3, _, 7]

Show answer

Answer: Row1[1]=16, Row3[2]=3

SubType
number-pyramid
Difficulty
expert
Levels
  • [16]
  • [6,10]
  • [3,3,7]
Base
  • 3
  • 3
  • 7
TopValue
16
HiddenCells
  • {"r":0,"c":0,"v":16}
  • {"r":2,"c":1,"v":3}