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2012 Countdown

Authored by Tanya Nobrega

Mathematics

6th - 8th Grade

Used 2+ times

2012 Countdown
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14 questions

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1.

FILL IN THE BLANK QUESTION

1 min • 1 pt

An odd integer between 600 and 800 is divisible by both 9 and 11. What is the

sum of its digits?

2.

FILL IN THE BLANK QUESTION

1 min • 1 pt

3.

FILL IN THE BLANK QUESTION

1 min • 1 pt

4.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Mr. Masterson rolls two standard, six-sided dice. What is the probability that

he gets a square number on one of the dice and an odd number on the other?

Express your answer as a common fraction.

5.

FILL IN THE BLANK QUESTION

1 min • 1 pt

The second and fourth digits of a five-digit integer N are interchanged to form

the integer K. What is the remainder when | N – K | is divided by 11?

6.

FILL IN THE BLANK QUESTION

1 min • 1 pt

What is the closest integer to –2.58?

7.

FILL IN THE BLANK QUESTION

1 min • 1 pt

If the length of a rectangle is increased by 30% and its width is decreased by

20%, by what percent is the area increased?

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