Question

Use the partial product strategy to solve 861 x 28

Answer 1

24108 is your answer trust me i did this before

Answer 2

861×28 = 24108

Explanation:

We have to use partial product strategy to solve this multiplication problem.

Partial product strategy is an easy way or technique that helps us to solve multi-digit multiplication by breaking down the complicated digits into smaller units

`861* 28`

With the help of partial product strategy it can be written as:

`(800 + 60)* (30-2) + 28`

We use the identity:
`(a+b)(c-d) = ac - ad +bc -bd`

`(800 + 60)* (30-2) + 28\\=24000 - 1600 +1800 - 120 + 28\\= 24108`