Understanding place value when multiplying and dividing by 10 | |
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Description | |
Exercise Name: | Understanding place value when multiplying and dividing by 10 |
Math Missions: | 4th grade (U.S.) Math Mission |
Types of Problems: | 3 |
The Understanding place value when multiplying and dividing by 10 exercise appears under the 4th grade (U.S.) Math Mission. This exercise practices recognizing that in a multi-digit whole number, a digit in one place represents ten times what it represents in the place to its right.
Types of problems[]
Find how many times larger the first ___ is than the second ___ .
Find what __ ___ timer ___ equals.
Find what the value of the number is before and after it has been multiplied.
There are three types of problems in this exercise:
- The value the first ___ represents is ___ times as large as the value the second ___ represents.: This problem has a number with the same numbers for two different place values and user is asked to type how many times larger the first value is than the second value.
- __ ____ times ___ = ?: This problem has an equations such as 16 hundreds times 10 = ? and user is asked to find what "?" is and click the correct answer.
- The ___ is in the place and it represents a value of ___. The ___ moves to the ___ place and has a value of ___: This problem has a number that user starts with, and they are asked to find the number in a certain place value and the value it represents, then they are asked to multiply the starting number by 10 and find the value of the number and the place value it now represents.
Strategies[]
Basic knowledge of place value is required for this exercise.
- If user is having trouble finding the place value, they can use place value blocks or enable the scratchpad to draw out what they are doing.
Real-life Applications[]
- Place value is used for writing checks.
- A common example of place value is money (example: $1.69 means that there is 1 whole (dollar), 6 tenths (dimes), and 9 hundredths (pennies)).