expert 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): [17] → [9, _] → [5, _, 4]

Show answer

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

SubType
number-pyramid
Difficulty
expert
Levels
  • [17]
  • [9,8]
  • [5,4,4]
Base
  • 5
  • 4
  • 4
TopValue
17
HiddenCells
  • {"r":1,"c":1,"v":8}
  • {"r":2,"c":1,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [17] → [8, 9] → [7, _, _]

Show answer

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

SubType
number-pyramid
Difficulty
expert
Levels
  • [17]
  • [8,9]
  • [7,1,8]
Base
  • 7
  • 1
  • 8
TopValue
17
HiddenCells
  • {"r":2,"c":2,"v":8}
  • {"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): [_] → [_, 16] → [5, 8, 8]

Show answer

Answer: Row1[1]=29, Row2[1]=13

SubType
number-pyramid
Difficulty
expert
Levels
  • [29]
  • [13,16]
  • [5,8,8]
Base
  • 5
  • 8
  • 8
TopValue
29
HiddenCells
  • {"r":0,"c":0,"v":29}
  • {"r":1,"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): [_] → [13, 11] → [3, _, 1]

Show answer

Answer: Row1[1]=24, Row3[2]=10

SubType
number-pyramid
Difficulty
expert
Levels
  • [24]
  • [13,11]
  • [3,10,1]
Base
  • 3
  • 10
  • 1
TopValue
24
HiddenCells
  • {"r":0,"c":0,"v":24}
  • {"r":2,"c":1,"v":10}