starter Set 79 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [30] → [_, _] → [8, 10, 2]

Show answer

Answer: Row2[2]=12, Row2[1]=18

SubType
number-pyramid
Difficulty
starter
Levels
  • [30]
  • [18,12]
  • [8,10,2]
Base
  • 8
  • 10
  • 2
TopValue
30
HiddenCells
  • {"r":1,"c":1,"v":12}
  • {"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): [_] → [8, 8] → [1, 7, _]

Show answer

Answer: Row3[3]=1, Row1[1]=16

SubType
number-pyramid
Difficulty
starter
Levels
  • [16]
  • [8,8]
  • [1,7,1]
Base
  • 1
  • 7
  • 1
TopValue
16
HiddenCells
  • {"r":2,"c":2,"v":1}
  • {"r":0,"c":0,"v":16}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [22] → [_, _] → [8, 6, 2]

Show answer

Answer: Row2[1]=14, Row2[2]=8

SubType
number-pyramid
Difficulty
starter
Levels
  • [22]
  • [14,8]
  • [8,6,2]
Base
  • 8
  • 6
  • 2
TopValue
22
HiddenCells
  • {"r":1,"c":0,"v":14}
  • {"r":1,"c":1,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [23] → [12, _] → [_, 4, 7]

Show answer

Answer: Row2[2]=11, Row3[1]=8

SubType
number-pyramid
Difficulty
starter
Levels
  • [23]
  • [12,11]
  • [8,4,7]
Base
  • 8
  • 4
  • 7
TopValue
23
HiddenCells
  • {"r":1,"c":1,"v":11}
  • {"r":2,"c":0,"v":8}