EDGE Math 8

Choose the correct answer to each question.

For numbers 1 and 2, refer to the following set of equations:

\begin{array}{l} 1 \times 1 =_________________ \\ 11 \times 11 =_________________ \\ 111 \times 111 =_________________ \end{array}

1.	Calculate the products in the set of equations. If the pattern of the products will continue, what will be the product in the 4th equation?

123 321

1 234 321

12 343 210

None of the choices

Answer: 1 234 321

2.	What will be the product in the 5th equation?

1 234 321

123 454 321

12 345 654 321

None of the choices

Answer: 123 454 321

For numbers 3 and 4, refer to the following set of equations:

\begin{array}{l} 9^{2} =_________________ \\ 99^{2} =_________________ \\ 999^{2} =_________________ \end{array}

3.	Calculate the products in the set of equations. If the pattern of the products will continue, what will be the product in the 4th equation?

99 980 001

999 980 001

999 800 001

None of the choices

Answer: 99 980 001

4.	What will be the product in the 5th equation?

999 980 001

9 998 000 001

9 999 800 001

None of the choices

Answer: 9 999 800 001

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