starter Set 90 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [25] → [13, _] → [_, 6, 6]

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Answer: Row2[2]=12, Row3[1]=7

SubType
number-pyramid
Difficulty
starter
Levels
  • [25]
  • [13,12]
  • [7,6,6]
Base
  • 7
  • 6
  • 6
TopValue
25
HiddenCells
  • {"r":1,"c":1,"v":12}
  • {"r":2,"c":0,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [16] → [5, _] → [3, _, 9]

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [16]
  • [5,11]
  • [3,2,9]
Base
  • 3
  • 2
  • 9
TopValue
16
HiddenCells
  • {"r":2,"c":1,"v":2}
  • {"r":1,"c":1,"v":11}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [29] → [_, _] → [3, 8, 10]

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Answer: Row2[1]=11, Row2[2]=18

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

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [13] → [5, 8] → [4, _, _]

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Answer: Row3[3]=7, Row3[2]=1

SubType
number-pyramid
Difficulty
starter
Levels
  • [13]
  • [5,8]
  • [4,1,7]
Base
  • 4
  • 1
  • 7
TopValue
13
HiddenCells
  • {"r":2,"c":2,"v":7}
  • {"r":2,"c":1,"v":1}