starter Set 26 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [12] → [10, _] → [_, 1, 1]

Show answer

Answer: Row3[1]=9, Row2[2]=2

SubType
number-pyramid
Difficulty
starter
Levels
  • [12]
  • [10,2]
  • [9,1,1]
Base
  • 9
  • 1
  • 1
TopValue
12
HiddenCells
  • {"r":2,"c":0,"v":9}
  • {"r":1,"c":1,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [35] → [16, _] → [7, 9, _]

Show answer

Answer: Row2[2]=19, Row3[3]=10

SubType
number-pyramid
Difficulty
starter
Levels
  • [35]
  • [16,19]
  • [7,9,10]
Base
  • 7
  • 9
  • 10
TopValue
35
HiddenCells
  • {"r":1,"c":1,"v":19}
  • {"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): [27] → [10, _] → [_, 9, 8]

Show answer

Answer: Row2[2]=17, Row3[1]=1

SubType
number-pyramid
Difficulty
starter
Levels
  • [27]
  • [10,17]
  • [1,9,8]
Base
  • 1
  • 9
  • 8
TopValue
27
HiddenCells
  • {"r":1,"c":1,"v":17}
  • {"r":2,"c":0,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 20] → [7, 10, 10]

Show answer

Answer: Row2[1]=17, Row1[1]=37

SubType
number-pyramid
Difficulty
starter
Levels
  • [37]
  • [17,20]
  • [7,10,10]
Base
  • 7
  • 10
  • 10
TopValue
37
HiddenCells
  • {"r":1,"c":0,"v":17}
  • {"r":0,"c":0,"v":37}