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Explain how to use the associative properties of addition and multiplication to find sums mentally?
Wiki User
∙ 15y ago
use mental math
Wiki User
∙ 15y ago
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Is the equation 5(7 2)- 408?
Explain how you can use the commutative and associative prpoperties to add 19+28+81 mentally.
How does the associative property help you multiply mentally?
Suppose you were trying to multiply 17 x 5 x 2. The associative property states that (17 x 5) x 2 = 17 x (5 x 2) The second one is easier to do in your head.
What word represents numbers that are easy to divide mentally?
easy to divide mentally
How can the Distributive Property be used to calculate the expression 6 times 53 more quick?
You use the distributive property every time you use the standard multiplication method, whether mentally or with pencil and paper. In this case, 6 x 53 = 6 x (50 + 3) = 6 x 50 + 6 x 3.
What is easy to divide mentally called?
one
How do the commutative and associative properties of multiplication could help evaluate the product of 5 multiplied by 17 multiplied by 2 mentally?
5*2 is 10 and 10*17 is 170
What is associative property of multiplication and how can you use it to compute 4x27x25 mentally?
dont know about associative property but this one is easy in your head. 4x25=100x27=2700
How can associative property of multiplication can help solve math problems mentally?
You can do the easy bits first. Thus, to calculate 7*5*2, instead of doing 35*2 = 70, you can calculate 7*10 = 70. By itself, the associative property is not as useful as it is in combination with the commutative and distributive properties.
How can the associative property of multiplication be used to compute 14 x 2 x 50 mentally?
Do the 2 x 50 first. Get 100. Multiply that by 14.
Write a definition for the the Associative Property of Multiplication in your own words and explain how you would use it to compute 4x25x27 mentally.?
the property which states that for all real numbers a,b,and c their product is always the same, regardless of their grouping
How can the associative property can be used to mentally find the volume of a prism?
In general, the associative property cannot be used for this purpose. The volume of a prism is the area of cross section multiplied by the length, and except in the case of a rectangular prism, there is no scope for using the associative property.
How the associative property can be used to mentally find the volume of the prism shown?
The exact answer will depend on the details of the prism which is not shown!
Is the equation 5(7 2)- 408?
Explain how you can use the commutative and associative prpoperties to add 19+28+81 mentally.
How do you compute 4x27x25 mentally?
if you mean multiplication then 4x25=100 x 27 = 270
What is a definition for the associative property of multiplication and how you would use it to compute 4 times 25 times 27 mentally?
The addition or multiplication of a set of numbers is the same regardless of how the numbers are grouped. The associative property will involve 3 or more numbers. The parenthesis indicates the terms that are considered one unit.The groupings (Associative Property) are within the parenthesis. Hence, the numbers are 'associated' together. In multiplication, the product is always the same regardless of their grouping. The Associative Property is pretty basic to computational strategies. Remember, the groupings in the brackets are always done first, this is part of the order of operations.When we change the groupings of addends, the sum does not change:(2 + 5) + 4 = 11 or 2 + (5 + 4) = 11(9 + 3) + 4 = 16 or 9 + (3 + 4) = 16Just remember that when the grouping of addends changes, the sum remains the same.Multiplication ExampleWhen we change the groupings of factors, the product does not change:(3 x 2) x 4 = 24 or 3 x (2 x 4) = 24.Just remember that when the grouping of factors changes, the product remains the same.Think Grouping! Changing the grouping of addends does not change the sum, changing the groupings of factors, does not change the product.*** 4x(25x27) = (4x25)x27***
How does the associative property help you multiply mentally?
Suppose you were trying to multiply 17 x 5 x 2. The associative property states that (17 x 5) x 2 = 17 x (5 x 2) The second one is easier to do in your head.
What are the patterns and properties to compute mentally for 120 times 30?
The patterns and properties to compute mentally 120 times 30 is the numbers 12 and 3 plus the two 0. Multiply 12 by 3 (36) and add the two 0 (3600).
