Unit 4 Review

Front

What is the process to find how many more students are needed to reach a target number?

Back

To find how many more students are needed to reach a target number, subtract the current number of students from the target number. For example, if the target is 1,000,000 and there are 984,462 students, the calculation is 1,000,000 - 984,462 = 15,538.

Front

How do you calculate the distance when one distance is a multiple of another?

Back

To calculate the distance when one distance is a multiple of another, multiply the known distance by the multiple. For example, if the distance from New York City to Boston is 225 miles and the distance to Salt Lake City is 10 times as far, the calculation is 225 miles x 10 = 2,250 miles.

Front

What is the concept of comparing times in a race?

Back

When comparing times in a race, you look at the times taken by each participant and determine who was faster or slower. For example, if Clare took 6.8 seconds and Han took 6.9 seconds, Clare was faster. If Andre took less time than Han but more than Clare, his time must be between 6.8 and 6.9 seconds.

Front

How do you find the sum of two numbers?

Back

To find the sum of two numbers, add them together. For example, to find the sum of 32,456 and 34,762, you calculate 32,456 + 34,762 = 67,218.

Front

What is place value in mathematics?

Back

Place value is the value of a digit based on its position in a number. For example, in the number 1,234, the digit 2 is in the 'hundreds' place, meaning it represents 200.

Front

What comes after the Hundreds place in place value?

Back

The place value that comes immediately after Hundreds is Thousands.

Front

How do you determine the difference between two numbers?

Back

To determine the difference between two numbers, subtract the smaller number from the larger number. For example, to find the difference between 984,462 and 633,621, calculate 984,462 - 633,621.

Front

What is a multiple in mathematics?

Back

A multiple of a number is the product of that number and an integer. For example, multiples of 5 include 5, 10, 15, 20, etc.

Front

How do you compare two distances?

Back

To compare two distances, you can look at their numerical values and determine which is greater or if they are equal. For example, comparing 225 miles and 2,250 miles shows that 2,250 miles is greater.

Front

What is the definition of a sum in mathematics?

Back

The sum is the result of adding two or more numbers together.