starter Set 88 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 18] → [8, 9, 9]

Show answer

Answer: Row2[1]=17, Row1[1]=35

SubType
number-pyramid
Difficulty
starter
Levels
  • [35]
  • [17,18]
  • [8,9,9]
Base
  • 8
  • 9
  • 9
TopValue
35
HiddenCells
  • {"r":1,"c":0,"v":17}
  • {"r":0,"c":0,"v":35}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [13, 16] → [_, 7, 9]

Show answer

Answer: Row3[1]=6, Row1[1]=29

SubType
number-pyramid
Difficulty
starter
Levels
  • [29]
  • [13,16]
  • [6,7,9]
Base
  • 6
  • 7
  • 9
TopValue
29
HiddenCells
  • {"r":2,"c":0,"v":6}
  • {"r":0,"c":0,"v":29}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [34] → [17, _] → [_, 7, 10]

Show answer

Answer: Row3[1]=10, Row2[2]=17

SubType
number-pyramid
Difficulty
starter
Levels
  • [34]
  • [17,17]
  • [10,7,10]
Base
  • 10
  • 7
  • 10
TopValue
34
HiddenCells
  • {"r":2,"c":0,"v":10}
  • {"r":1,"c":1,"v":17}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [28] → [_, 13] → [_, 6, 7]

Show answer

Answer: Row3[1]=9, Row2[1]=15

SubType
number-pyramid
Difficulty
starter
Levels
  • [28]
  • [15,13]
  • [9,6,7]
Base
  • 9
  • 6
  • 7
TopValue
28
HiddenCells
  • {"r":2,"c":0,"v":9}
  • {"r":1,"c":0,"v":15}