Decimal Test

Front

What is rounding in mathematics?

Back

Rounding is the process of adjusting the digits of a number to make it simpler while keeping its value close to what it was. For example, rounding 98.62 to the nearest whole number gives 99.

Front

How do you round the number 98.62 to the nearest whole number?

Back

To round 98.62 to the nearest whole number, look at the digit after the decimal point (6). Since it is 5 or greater, you round up to 99.

Front

What does it mean to order numbers from greatest to least?

Back

Ordering numbers from greatest to least means arranging them starting with the largest number and ending with the smallest number.

Front

Order the following numbers from greatest to least: 1.876, 1.77, 1.80.

Back

1.876, 1.80, 1.77.

Front

What decimal does the green dot represent on the number line if it is between 7.8 and 7.89?

Back

The green dot represents 7.88.

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 answer directly below the other decimal points.

Front

What is 2.37 + 5.8?

Back

2.37 + 5.8 = 8.17.

Front

If a race is 22.01 kilometers and one runner ran 9.41 kilometers, how do you find out how far the other runner ran?

Back

Subtract the distance run by the first runner from the total distance: 22.01 - 9.41 = 12.6 kilometers.

Front

What is the result of 22.01 - 9.41?

Back

22.01 - 9.41 = 12.6.

Front

What is a decimal?

Back

A decimal is a way of representing fractions in a base 10 system, using a decimal point to separate the whole number part from the fractional part.