easy Set 89 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, _] → [_, 5, 8]

Show answer

Answer: Row3[1]=2, Row2[2]=13

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

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 11] → [10, 8, 3]

Show answer

Answer: Row1[1]=29, Row2[1]=18

SubType
number-pyramid
Difficulty
easy
Levels
  • [29]
  • [18,11]
  • [10,8,3]
Base
  • 10
  • 8
  • 3
TopValue
29
HiddenCells
  • {"r":0,"c":0,"v":29}
  • {"r":1,"c":0,"v":18}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [10, _] → [1, 9, 5]

Show answer

Answer: Row1[1]=24, Row2[2]=14

SubType
number-pyramid
Difficulty
easy
Levels
  • [24]
  • [10,14]
  • [1,9,5]
Base
  • 1
  • 9
  • 5
TopValue
24
HiddenCells
  • {"r":0,"c":0,"v":24}
  • {"r":1,"c":1,"v":14}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [19] → [13, 6] → [9, _, _]

Show answer

Answer: Row3[3]=2, Row3[2]=4

SubType
number-pyramid
Difficulty
easy
Levels
  • [19]
  • [13,6]
  • [9,4,2]
Base
  • 9
  • 4
  • 2
TopValue
19
HiddenCells
  • {"r":2,"c":2,"v":2}
  • {"r":2,"c":1,"v":4}