starter Set 60 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [26] → [15, _] → [9, _, 5]

Show answer

Answer: Row2[2]=11, Row3[2]=6

SubType
number-pyramid
Difficulty
starter
Levels
  • [26]
  • [15,11]
  • [9,6,5]
Base
  • 9
  • 6
  • 5
TopValue
26
HiddenCells
  • {"r":1,"c":1,"v":11}
  • {"r":2,"c":1,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 12] → [6, 7, 5]

Show answer

Answer: Row2[1]=13, Row1[1]=25

SubType
number-pyramid
Difficulty
starter
Levels
  • [25]
  • [13,12]
  • [6,7,5]
Base
  • 6
  • 7
  • 5
TopValue
25
HiddenCells
  • {"r":1,"c":0,"v":13}
  • {"r":0,"c":0,"v":25}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [12, 18] → [4, _, 10]

Show answer

Answer: Row3[2]=8, Row1[1]=30

SubType
number-pyramid
Difficulty
starter
Levels
  • [30]
  • [12,18]
  • [4,8,10]
Base
  • 4
  • 8
  • 10
TopValue
30
HiddenCells
  • {"r":2,"c":1,"v":8}
  • {"r":0,"c":0,"v":30}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [33] → [_, 16] → [9, 8, _]

Show answer

Answer: Row2[1]=17, Row3[3]=8

SubType
number-pyramid
Difficulty
starter
Levels
  • [33]
  • [17,16]
  • [9,8,8]
Base
  • 9
  • 8
  • 8
TopValue
33
HiddenCells
  • {"r":1,"c":0,"v":17}
  • {"r":2,"c":2,"v":8}