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Chapter 1: Q3. (page 19)

Evaluate each expression using the properties of numbers. Name the property used in each step.

3A.2.9鈰�4鈰�10

Short Answer

Expert verified

The value of the expression is 116.

Step by step solution

01

–Write the formulae used

Associative property of multiplication:

a鈰�b鈰�c=a鈰�b鈰�c

Commutative property of multiplication:

a鈰�b=b鈰�a

Inverse property of multiplication:

a鈰�1a=1a鈰�a=1

02

– Write the given information

The expression given is

2.9鈰�4鈰�10

03

- DESCRIPTION OF STEP

To solve given expression first rewrite it as:

2.9鈰�4鈰�10=2910鈰�4鈰�10

Now use commutative property and associative property to solve it as:

2910鈰�4鈰�10=4鈰�2910鈰�10=4鈰�2910鈰�10=4鈰�29鈰�1inverseproperty=4鈰�29=116

Hence,2.9鈰�4鈰�10=116

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