Topic 1 Envision Review

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 327,486 to the nearest thousand gives 327,000.

Front

How do you write six hundred thousand, three hundred eighteen in standard form?

Back

600,318

Front

What is the value of the digit 3 in the number 457,832?

Back

30, because it is in the tens place.

Front

In the number 50,553, which digit represents ten times the value of the digit to its right?

Back

The digit 5 in the tens place represents ten times the value of the digit 3 in the ones place.

Front

What symbol would you use to compare 234,987 and 243,789?

Back

< (less than), because 234,987 is smaller than 243,789.

Front

What is the place value of the digit 8 in the number 1,238,456?

Back

The place value of 8 is 80,000, because it is in the ten-thousands place.

Front

How do you determine the value of a digit in a number?

Back

The value of a digit is determined by its place in the number. For example, in 4,567, the 5 is worth 500 because it is in the hundreds place.

Front

What does it mean for a digit to be in the hundreds place?

Back

A digit in the hundreds place represents how many hundreds are in the number. For example, in 3,245, the 2 is in the hundreds place and represents 200.

Front

What is the standard form of the number four hundred twenty-five thousand?

Back

425,000

Front

How do you compare two numbers?

Back

To compare two numbers, look at their digits from left to right and determine which number is larger or if they are equal.