starter Set 12 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [17] → [_, 5] → [10, 2, _]

Show answer

Answer: Row3[3]=3, Row2[1]=12

SubType
number-pyramid
Difficulty
starter
Levels
  • [17]
  • [12,5]
  • [10,2,3]
Base
  • 10
  • 2
  • 3
TopValue
17
HiddenCells
  • {"r":2,"c":2,"v":3}
  • {"r":1,"c":0,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [28] → [_, 16] → [4, 8, _]

Show answer

Answer: Row3[3]=8, Row2[1]=12

SubType
number-pyramid
Difficulty
starter
Levels
  • [28]
  • [12,16]
  • [4,8,8]
Base
  • 4
  • 8
  • 8
TopValue
28
HiddenCells
  • {"r":2,"c":2,"v":8}
  • {"r":1,"c":0,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [21] → [10, _] → [_, 3, 8]

Show answer

Answer: Row2[2]=11, Row3[1]=7

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [10,11]
  • [7,3,8]
Base
  • 7
  • 3
  • 8
TopValue
21
HiddenCells
  • {"r":1,"c":1,"v":11}
  • {"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): [_] → [11, 13] → [3, _, 5]

Show answer

Answer: Row3[2]=8, Row1[1]=24

SubType
number-pyramid
Difficulty
starter
Levels
  • [24]
  • [11,13]
  • [3,8,5]
Base
  • 3
  • 8
  • 5
TopValue
24
HiddenCells
  • {"r":2,"c":1,"v":8}
  • {"r":0,"c":0,"v":24}