easy Set 84 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [20] → [7, 13] → [4, _, _]

Show answer

Answer: Row3[2]=3, Row3[3]=10

SubType
number-pyramid
Difficulty
easy
Levels
  • [20]
  • [7,13]
  • [4,3,10]
Base
  • 4
  • 3
  • 10
TopValue
20
HiddenCells
  • {"r":2,"c":1,"v":3}
  • {"r":2,"c":2,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 13] → [5, 4, 9]

Show answer

Answer: Row2[1]=9, Row1[1]=22

SubType
number-pyramid
Difficulty
easy
Levels
  • [22]
  • [9,13]
  • [5,4,9]
Base
  • 5
  • 4
  • 9
TopValue
22
HiddenCells
  • {"r":1,"c":0,"v":9}
  • {"r":0,"c":0,"v":22}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [25] → [_, _] → [10, 4, 7]

Show answer

Answer: Row2[2]=11, Row2[1]=14

SubType
number-pyramid
Difficulty
easy
Levels
  • [25]
  • [14,11]
  • [10,4,7]
Base
  • 10
  • 4
  • 7
TopValue
25
HiddenCells
  • {"r":1,"c":1,"v":11}
  • {"r":1,"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): [_] → [_, 15] → [8, 9, 6]

Show answer

Answer: Row1[1]=32, Row2[1]=17

SubType
number-pyramid
Difficulty
easy
Levels
  • [32]
  • [17,15]
  • [8,9,6]
Base
  • 8
  • 9
  • 6
TopValue
32
HiddenCells
  • {"r":0,"c":0,"v":32}
  • {"r":1,"c":0,"v":17}