starter Set 42 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [22] → [_, _] → [8, 2, 10]

Show answer

Answer: Row2[2]=12, Row2[1]=10

SubType
number-pyramid
Difficulty
starter
Levels
  • [22]
  • [10,12]
  • [8,2,10]
Base
  • 8
  • 2
  • 10
TopValue
22
HiddenCells
  • {"r":1,"c":1,"v":12}
  • {"r":1,"c":0,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 17] → [10, 8, 9]

Show answer

Answer: Row1[1]=35, Row2[1]=18

SubType
number-pyramid
Difficulty
starter
Levels
  • [35]
  • [18,17]
  • [10,8,9]
Base
  • 10
  • 8
  • 9
TopValue
35
HiddenCells
  • {"r":0,"c":0,"v":35}
  • {"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): [_] → [13, 13] → [_, 7, 6]

Show answer

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [26]
  • [13,13]
  • [6,7,6]
Base
  • 6
  • 7
  • 6
TopValue
26
HiddenCells
  • {"r":0,"c":0,"v":26}
  • {"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): [_] → [10, 13] → [7, _, 10]

Show answer

Answer: Row3[2]=3, Row1[1]=23

SubType
number-pyramid
Difficulty
starter
Levels
  • [23]
  • [10,13]
  • [7,3,10]
Base
  • 7
  • 3
  • 10
TopValue
23
HiddenCells
  • {"r":2,"c":1,"v":3}
  • {"r":0,"c":0,"v":23}