Question

Which strategies can be used to find the product of 629 x 100? Check all that apply.

Answer 1

Answer:

The strategies (2), (3) and (5) can be applied.

Step-by-step explanation:

In this case we need to compute the product of 629 × 100.

The product can be found in the following ways:

• multiplying (600 + 20 + 9) x 100

       $(600 + 20 + 9) \times 100=(600\times 100)+(20\times 100)+(9\times 100)\\=60000+2000+900\\=62900$

• putting 2 zeros on the end of 629

        $629\times 100=62900$

• multiplying (6,000 + 200 +90) x 10

       $(6000 + 200 + 90) \times 10=(6000\times 10)+(200\times 10)+(90\times 10)\\=60000+2000+900\\=62900$

Thus, the strategies (2), (3) and (5) can be applied.