expert 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): [17] → [11, _] → [_, 5, 1]

Show answer

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

SubType
number-pyramid
Difficulty
expert
Levels
  • [17]
  • [11,6]
  • [6,5,1]
Base
  • 6
  • 5
  • 1
TopValue
17
HiddenCells
  • {"r":1,"c":1,"v":6}
  • {"r":2,"c":0,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [12, 8] → [_, 3, 5]

Show answer

Answer: Row1[1]=20, Row3[1]=9

SubType
number-pyramid
Difficulty
expert
Levels
  • [20]
  • [12,8]
  • [9,3,5]
Base
  • 9
  • 3
  • 5
TopValue
20
HiddenCells
  • {"r":0,"c":0,"v":20}
  • {"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): [22] → [_, 11] → [9, 2, _]

Show answer

Answer: Row3[3]=9, Row2[1]=11

SubType
number-pyramid
Difficulty
expert
Levels
  • [22]
  • [11,11]
  • [9,2,9]
Base
  • 9
  • 2
  • 9
TopValue
22
HiddenCells
  • {"r":2,"c":2,"v":9}
  • {"r":1,"c":0,"v":11}

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

Show answer

Answer: Row3[2]=6, Row1[1]=26

SubType
number-pyramid
Difficulty
expert
Levels
  • [26]
  • [13,13]
  • [7,6,7]
Base
  • 7
  • 6
  • 7
TopValue
26
HiddenCells
  • {"r":2,"c":1,"v":6}
  • {"r":0,"c":0,"v":26}