Math Quiz

Which expressions are equal to 8 × 10^5? Select all that apply.

• 8 × 1,000

• 8 × 10,000

• 8 × 100,000

• 8 × 10 × 10 × 10 × 10

• 8 × 10 × 10 × 10 × 10 × 10

The area of Gateway National Recreation Area is about twenty-six thousand, six hundred six and sixty-three hundredths acres. Which shows this number in standard form?

• 26,606.3

• 26.606.63

• 26,606.63

• 26.666.3

Which numbers have a digit in the ones place that is 1/10 the value of the digit in the tens place? Select all that apply.

• 4,099

• 4,110

• 5,909

• 5,011

• 6,333

Which comparisons are true? Select all that apply.

• 7.34 > 7.304

• 1.628 > 1.63

• 4.05 < 4.055

• 9.103 < 9.13

• 2.29 < 2.129

In math class, Alyssa's average test score is 90.125. Part A What is 90.125 written in expanded form?

• 9 x 10 + 1 x 1 + 1/10 + 2 x 1/100 + 5 x 1/1,000

• 9 x 10 + 1 x 1 + 1/10 + 2 x 1/100 + 5 x 1/1,000

• 9 x 10 + 1 x 1 + 1/10 + 2 x 1/100 + 5 x 1/1,000

• 9 x 10 + 1 x 1 + 1/10 + 2 x 1/100 + 5 x 1/1,000

Part B What is 90.125 written in word form?

• ninety-one and twenty-five hundredths

• ninety-one and twenty-five thousandths

• ninety and one hundred twenty-five tenths

• ninety and one hundred twenty-five thousandths

A racecar driver holds the record for the fastest speed of 212.809 miles per hour. Part A What is 212.809 rounded to the nearest hundredth? Enter your answer in the box.

Part B Which explains how you round 212.809 to the nearest hundredth?

• Since the digit in the hundredths place is less than 5, keep the digit in the hundredths place. Then drop the digit in the thousandths place.

• Since the digit in the hundredths place is less than 5, keep the digit in the tenths place. Then drop the digit in the hundredths and thousandths places.

• Since the digit in the thousandths place is greater than or equal to 5, increase the digit in the hundredths place by 1. Then drop the digit in the thousandths place.

• Since the digit in the thousandths place is greater than or equal to 5, keep the digit in the hundredths place. Then drop the digit in the thousandths place.