easy Set 87 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [25] → [_, 10] → [10, _, 5]

Show answer

Answer: Row3[2]=5, Row2[1]=15

SubType
number-pyramid
Difficulty
easy
Levels
  • [25]
  • [15,10]
  • [10,5,5]
Base
  • 10
  • 5
  • 5
TopValue
25
HiddenCells
  • {"r":2,"c":1,"v":5}
  • {"r":1,"c":0,"v":15}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [14, 11] → [4, _, 1]

Show answer

Answer: Row3[2]=10, Row1[1]=25

SubType
number-pyramid
Difficulty
easy
Levels
  • [25]
  • [14,11]
  • [4,10,1]
Base
  • 4
  • 10
  • 1
TopValue
25
HiddenCells
  • {"r":2,"c":1,"v":10}
  • {"r":0,"c":0,"v":25}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [16] → [10, 6] → [_, 4, _]

Show answer

Answer: Row3[1]=6, Row3[3]=2

SubType
number-pyramid
Difficulty
easy
Levels
  • [16]
  • [10,6]
  • [6,4,2]
Base
  • 6
  • 4
  • 2
TopValue
16
HiddenCells
  • {"r":2,"c":0,"v":6}
  • {"r":2,"c":2,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [17] → [10, 7] → [_, _, 3]

Show answer

Answer: Row3[1]=6, Row3[2]=4

SubType
number-pyramid
Difficulty
easy
Levels
  • [17]
  • [10,7]
  • [6,4,3]
Base
  • 6
  • 4
  • 3
TopValue
17
HiddenCells
  • {"r":2,"c":0,"v":6}
  • {"r":2,"c":1,"v":4}