7.1, 7.2.notebook
Quiz #9
November 17, 2016
Fill in the following blanks:
The "identity" number for addition is
because A +
= A for any A
The "identity" number for multiplication is
because A x
= A for any A
B is called the "Additive Inverse" of A if A + B =
.
The common name for "Additive Inverse" is
B is called the "Multiplicative Inverse" of A if A x B =
The common name for "Multiplicative Inverse" is
.
.
.
The "Additive Inverse" can be used to rewrite X - Y as
.
The "Multiplicative Inverse" can be used to rewrite X ÷ Y as
.
1
7.1, 7.2.notebook
November 17, 2016
7.1 Decimals
Expanded Notation:
5243.9187
Expanded Exponential Notation:
Multiplying and Dividing by Powers of Ten:
Scientific Notation:
Rule:
Converting Terminating Decimals to Fractions:
6.7
19.01
.0035
Converting Fractions to Decimals:
2
7.1, 7.2.notebook
November 17, 2016
7.2 Decimal Arithmetic
Adding/Subtracting:
148.93 + 2.8 + 4.597
8.931 ­ 14.03
Multiplying:
38.4 x 0.53
Dividing:
3
7.1, 7.2.notebook
November 17, 2016
Repeating Decimals:
4