xi
UNIT
9
Multiplying Fractions
. . . . . . . . . . . . . . . . .
97
Method Used to Multiply Fractions . . . . . . . 98
Multiplying Mixed Numbers . . . . . . . . . . . . . 98
Multiplying More than Two Fractions . . . . . 99
Multiplying More than Two Mixed
Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
UNIT
10
Dividing Fractions
. . . . . . . . . . . . . . . . . . . .
109
Method Used to Divide Fractions . . . . . . . . 109
Dividing Mixed Numbers . . . . . . . . . . . . . . 110
SECTION
3
Decimals
UNIT
11
Basic Principles of Decimals
. . . . . . . . . .
126
Place Value and Rounding Decimals . . . . . 127
Converting Decimals to Fractions . . . . . . . 128
UNIT
12
Adding and Subtracting Decimals
. . .
133
Method Used to Add Decimals . . . . . . . . . 133
Method Used to Subtract Decimals . . . . . . 134
UNIT
13
Multiplying Decimals
. . . . . . . . . . . . . . . .
143
Method Used to Multiply Decimals . . . . . . 143
Placing the Decimal in the Product . . . . . . 144
UNIT
14
Dividing Decimals
. . . . . . . . . . . . . . . . . . .
153
Method Used to Divide Decimals . . . . . . . 153
Decimal Placement in the Quotient . . . . . . 154
Converting Fractions to Decimals . . . . . . . 155
SECTION
4
Measurement
UNIT
15
Linear Measurement
. . . . . . . . . . . . . . . .
174
US Customary System . . . . . . . . . . . . . . . . . 174
Reading an Architect’s Scale . . . . . . . . . . . . 176
Converting Lineal Measurements . . . . . . . 177
UNIT
16
Perimeter Measurement
. . . . . . . . . . . . .
187
Perimeter of a Square . . . . . . . . . . . . . . . . . . 187
Perimeter of a Rectangle . . . . . . . . . . . . . . . 188
Perimeter of Irregular Polygons . . . . . . . . . 189
UNIT
17
Area Measurement
. . . . . . . . . . . . . . . . . .
199
Area of a Square . . . . . . . . . . . . . . . . . . . . . . 200
Area of a Rectangle . . . . . . . . . . . . . . . . . . . 200
Area of a Triangle . . . . . . . . . . . . . . . . . . . . . 201
Area of Irregular Polygons . . . . . . . . . . . . . 202
Converting Square Units of Measure . . . . 202
UNIT
18
Volume Measurement
. . . . . . . . . . . . . . .
215
Volume of a Cube . . . . . . . . . . . . . . . . . . . . . 215
Volume of a Rectangular Solid . . . . . . . . . . 216
Volume of Irregular Shaped Objects . . . . . 217
Converting Volume Measurements . . . . . . 218
UNIT
19
Board Foot Measurement
. . . . . . . . . . .
229
Nominal and Dressed Sizes of Lumber . . . 229
Calculating Board Feet . . . . . . . . . . . . . . . . 231