Question

6999 × 599

Explanation:

Step1: Rewrite numbers

$6999 = 7000 - 1$, $599 = 600 - 1$

Step2: Apply FOIL method

$(7000 - 1)\times(600 - 1)=7000\times600-7000\times1 - 1\times600+1\times1$

Step3: Calculate each product

$7000\times600 = 4200000$, $7000\times1=7000$, $1\times600 = 600$, $1\times1 = 1$

Step4: Perform subtraction and addition

$4200000-7000 - 600+1=4192401$

Answer:

$4192401$