Writing for the Web 4 Summary:
By the Commutative and Associative Properties, 4 x x 3 x 10 becomes 4 x 3 x x 10 or 12 x 1, Patterns showing products of multiples generate student interest and often open lines of communication. Encourage students to explain patterns by writing them in a journal. The multiplication operation has several mathematical properties.
As demonstrated, the Commutative Property allows the order of factors to be changed without changing the product. This property allows us to multiply in an order that we may find more convenient. We can find 4 x 56 or 56 x 4 because the product does not change.
The Associative Property allows factors to be grouped in different ways without changing the product. Both properties are especially useful for mental math. Notice that the Commutative and Associative Properties use the single operation of multiplication.
On the other hand, the Distributive Property uses two operations: It is an essential key to success in algebra. The Distributive Property allows you to "distribute" a number to each of the addends within parentheses.
It offers another way of solving a problem. Although powerful, the Distributive Property can be intricate. Here is an example. This array shows 3 x 6. The array can be rearranged in the following way.
The factor 6 has been replaced by the sum of 4 and 2. You can see that there are now three groups of 4 and three groups of 2. Notice that the total number of items always remains the same. Using this example, you can find the sum of 4 and 2, then multiply by 3. Or you can distribute the 3 and create two products that are then added.Use expanded form to multiply a multidigit number by a 1-digit number.
Use place value and partial products to multiply a mutidigit number by a 1-digit number. Use mental math and properties to multiply a multidigit number by a 1-digit number.
Add within , including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the.
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studying letters and their sounds, and using letters to form simple words and practice word patterns. The students then compare numbers, and whoever has the largest three-digit number wins the game. This game would be. See how to write out numbers on checks and other documents.
Tips for clarity, and examples using large and small numbers.
The Balance Write Out Numbers Using Words. Menu Search Go. Go.
Investing. Basics Stocks Real Estate Value Investing View All ; Credit & Debt. The comma is not used when you write out the number using words. . The general rule of thumb is that if the number is one or two words, you should write it out as words, rather than using the numerals.
This means that you should write out numbers zero through one hundred. Wishing Dad Happy Father’s Day by Writing Numbers in Words and Digits Answer Key Directions: Write the number word or digit as instructed. 1. Answer: 7 4.
Answer: 20 2. Answer: eleven 5. Answer: 12 3. Answer: fifteen 6. Answer: nineteen Write the digit.