Use the partial product strategy to solve 861 x 28
Answer:
861×28 = 24108
Step-by-step 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
\(861\times 28\)
With the help of partial product strategy it can be written as:
\((800 + 60)\times (30-2) + 28\)
We use the identity: \((a+b)(c-d) = ac - ad +bc -bd\)
\((800 + 60)\times (30-2) + 28\\=24000 - 1600 +1800 - 120 + 28\\= 24108\)