starter Set 70 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [20] → [_, 9] → [_, 6, 3]

Show answer

Answer: Row3[1]=5, Row2[1]=11

SubType
number-pyramid
Difficulty
starter
Levels
  • [20]
  • [11,9]
  • [5,6,3]
Base
  • 5
  • 6
  • 3
TopValue
20
HiddenCells
  • {"r":2,"c":0,"v":5}
  • {"r":1,"c":0,"v":11}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [8, _] → [3, 5, 5]

Show answer

Answer: Row1[1]=18, Row2[2]=10

SubType
number-pyramid
Difficulty
starter
Levels
  • [18]
  • [8,10]
  • [3,5,5]
Base
  • 3
  • 5
  • 5
TopValue
18
HiddenCells
  • {"r":0,"c":0,"v":18}
  • {"r":1,"c":1,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [10] → [_, 5] → [4, _, 4]

Show answer

Answer: Row2[1]=5, Row3[2]=1

SubType
number-pyramid
Difficulty
starter
Levels
  • [10]
  • [5,5]
  • [4,1,4]
Base
  • 4
  • 1
  • 4
TopValue
10
HiddenCells
  • {"r":1,"c":0,"v":5}
  • {"r":2,"c":1,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [21] → [10, 11] → [2, _, _]

Show answer

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [10,11]
  • [2,8,3]
Base
  • 2
  • 8
  • 3
TopValue
21
HiddenCells
  • {"r":2,"c":1,"v":8}
  • {"r":2,"c":2,"v":3}