starter Set 19 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [15] → [7, _] → [4, _, 5]

Show answer

Answer: Row3[2]=3, Row2[2]=8

SubType
number-pyramid
Difficulty
starter
Levels
  • [15]
  • [7,8]
  • [4,3,5]
Base
  • 4
  • 3
  • 5
TopValue
15
HiddenCells
  • {"r":2,"c":1,"v":3}
  • {"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): [_] → [11, 11] → [2, 9, _]

Show answer

Answer: Row1[1]=22, Row3[3]=2

SubType
number-pyramid
Difficulty
starter
Levels
  • [22]
  • [11,11]
  • [2,9,2]
Base
  • 2
  • 9
  • 2
TopValue
22
HiddenCells
  • {"r":0,"c":0,"v":22}
  • {"r":2,"c":2,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [20] → [9, 11] → [_, 3, _]

Show answer

Answer: Row3[3]=8, Row3[1]=6

SubType
number-pyramid
Difficulty
starter
Levels
  • [20]
  • [9,11]
  • [6,3,8]
Base
  • 6
  • 3
  • 8
TopValue
20
HiddenCells
  • {"r":2,"c":2,"v":8}
  • {"r":2,"c":0,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [24] → [_, 13] → [4, 7, _]

Show answer

Answer: Row3[3]=6, Row2[1]=11

SubType
number-pyramid
Difficulty
starter
Levels
  • [24]
  • [11,13]
  • [4,7,6]
Base
  • 4
  • 7
  • 6
TopValue
24
HiddenCells
  • {"r":2,"c":2,"v":6}
  • {"r":1,"c":0,"v":11}