Box Method Calculator

Your details

Enter a whole number from 1 to 999.
Enter a whole number from 1 to 999.
Product2-digit x 2-digit grid
1,692

Sum of all partial products in the box

Grid cells4
Largest partial product1,200
Smallest partial product42
Partial 11,200
Partial 2240
Partial 3210
Partial 442
Partial 11,200
Partial 2240
Partial 3210
Partial 442
Partial 5-
Partial 6-
Partial 7-
Partial 8-
Partial 9-

47 x 36 = 1,692

  • 47 x 36 = 1,692. The box method produces 4 partial products that sum to this total.
  • The largest partial product is 1,200, which accounts for 70.9% of the answer.
  • 47 breaks into 40 + 7 and 36 breaks into 30 + 6, giving a 2 x 2 grid.

Next stepTry changing one factor to see how the grid grows or shrinks. For three-digit numbers the box has up to 9 cells.

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