starter Set 84 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [11, 17] → [1, _, 7]

Show answer

Answer: Row3[2]=10, Row1[1]=28

SubType
number-pyramid
Difficulty
starter
Levels
  • [28]
  • [11,17]
  • [1,10,7]
Base
  • 1
  • 10
  • 7
TopValue
28
HiddenCells
  • {"r":2,"c":1,"v":10}
  • {"r":0,"c":0,"v":28}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [13, _] → [4, 9, 5]

Show answer

Answer: Row1[1]=27, Row2[2]=14

SubType
number-pyramid
Difficulty
starter
Levels
  • [27]
  • [13,14]
  • [4,9,5]
Base
  • 4
  • 9
  • 5
TopValue
27
HiddenCells
  • {"r":0,"c":0,"v":27}
  • {"r":1,"c":1,"v":14}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [18] → [8, 10] → [_, _, 4]

Show answer

Answer: Row3[2]=6, Row3[1]=2

SubType
number-pyramid
Difficulty
starter
Levels
  • [18]
  • [8,10]
  • [2,6,4]
Base
  • 2
  • 6
  • 4
TopValue
18
HiddenCells
  • {"r":2,"c":1,"v":6}
  • {"r":2,"c":0,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [24] → [_, 13] → [8, 3, _]

Show answer

Answer: Row3[3]=10, Row2[1]=11

SubType
number-pyramid
Difficulty
starter
Levels
  • [24]
  • [11,13]
  • [8,3,10]
Base
  • 8
  • 3
  • 10
TopValue
24
HiddenCells
  • {"r":2,"c":2,"v":10}
  • {"r":1,"c":0,"v":11}