Unit 2 Review

Front

What is a mile?

Back

A mile is a unit of length in the imperial system, equal to 5,280 feet or approximately 1.609 kilometers.

Front

How do you add decimals?

Back

To add decimals, align the numbers by the decimal point and add as you would whole numbers, placing the decimal point in the sum directly below the other decimal points.

Front

What is the value of 2.76 in terms of ones, tenths, and hundredths?

Back

2.76 can be expressed as 2 ones + 7 tenths + 6 hundredths.

Front

What does 'total distance' mean in a running event?

Back

Total distance refers to the complete length covered by a runner, including all segments of the run.

Front

If Lauren runs 2.76 miles and then 0.4 miles, how do you find the total distance?

Back

You add the two distances: 2.76 miles + 0.4 miles = 3.16 miles.

Front

What is the importance of understanding place value in decimals?

Back

Place value helps determine the value of each digit in a decimal number, which is crucial for accurate calculations.

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form, where the denominator is a power of ten, represented with a decimal point.

Front

How do you convert a decimal to a fraction?

Back

To convert a decimal to a fraction, write the decimal over its place value (e.g., 0.75 = 75/100) and simplify if possible.

Front

What is the difference between a whole number and a decimal?

Back

Whole numbers are non-negative numbers without fractions or decimals, while decimals represent parts of a whole.

Front

What does 'rounding' mean in mathematics?

Back

Rounding is the process of adjusting the digits of a number to make it simpler while keeping its value close to the original.