Rounding & Place Value with decimals

Front

What is rounding?

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 4.531 to the nearest tenth gives 4.5.

Front

What is place value?

Back

Place value is the value of a digit based on its position in a number. For example, in the number 3.421, the digit 4 is in the tenths place, so its value is 0.4.

Front

What is the value of the digit 4 in the number 3.421?

Back

The value of the digit 4 in the number 3.421 is 0.4.

Front

What is ten times the value of the digit 4 in 3.421?

Back

Ten times the value of the digit 4 (0.4) is 4.0.

Front

How do you compare decimal numbers?

Back

To compare decimal numbers, look at the digits from left to right, starting with the largest place value. The first digit that differs determines which number is larger.

Front

Which is larger: 2.681 or 0.985?

Back

2.681 is larger than 0.985.

Front

What does it mean to round to the nearest tenth?

Back

Rounding to the nearest tenth means looking at the hundredths place to decide whether to round the tenths place up or keep it the same.

Front

Round 4.531 to the nearest tenth.

Back

4.531 rounded to the nearest tenth is 4.5.

Front

What is the power of ten representation of 42.379?

Back

The power of ten representation of 42.379 is (4 x 10) + (2 x 1) + (3 x 1/10) + (7 x 1/100) + (9 x 1/1000).

Front

What is the largest value of the digit 4 in the numbers 364, 9.45, and 7.64?

Back

The largest value of the digit 4 is in the number 364.