Question

find the product of: 672 x 576=
10,966
-3,722
387,072
382,778
question 8
find the quotient: 285 ÷ 5 =
75
57

Explanation:

Step1: Calculate 672×576 via breakdown

$672 \times 576 = 672 \times (500 + 70 + 6)$

Step2: Distribute multiplication to each term

$= 672\times500 + 672\times70 + 672\times6$

Step3: Compute each partial product

$= 336000 + 47040 + 4032$

Step4: Sum the partial products

$= 336000 + 47040 = 383040$; $383040 + 4032 = 387072$

Step5: Calculate 285÷5 directly

$285 \div 5 = 57$

Answer:

For $672 \times 576$: C. 387,072
For $285 \div 5$: 57