2.
CONTENTS
Comparing and Rounding Numbers..................................................................... 1
Adding and Subtracting Whole Numbers............................................................. 2
Estimating Sums and Differences......................................................................... 3
Multiplying Numbers Ending in Zeros .................................................................. 4
Estimating Products............................................................................................... 5
Dividing Whole Numbers ....................................................................................... 6
Dividing Numbers Ending in Zeros ....................................................................... 7
Estimating Quotients.............................................................................................. 8
Tables and Charts................................................................................................... 9
Large Numbers in Tables and Charts ................................................................. 10
Pictographs........................................................................................................... 11
Bar Graphs ............................................................................................................ 12
Line Graphs........................................................................................................... 13
Circle Graphs ........................................................................................................ 14
Rounding Decimals and Estimation ................................................................... 15
Adding and Subtracting Decimals ...................................................................... 16
Multiplying Decimals............................................................................................ 17
Multiplying by Powers of 10 ................................................................................ 18
Dividing a Decimal by a Whole Number ............................................................. 19
Dividing by a Decimal........................................................................................... 20
Calculation Shortcuts .......................................................................................... 21
Measures of Central Tendency: Mean, Median, and Mode .............................. 22
Equivalent Fractions ............................................................................................ 23
Adding Fractions and Mixed Numbers............................................................... 24
Subtracting Fractions and Mixed Numbers....................................................... 25
Multiplying a Whole Number by a Fraction........................................................ 26
Multiplying Fractions and Mixed Numbers ........................................................ 27
Fractions and Decimals ....................................................................................... 28
Ratios and Proportions........................................................................................ 29
Rates and Unit Rates ........................................................................................... 30
Meaning of Percent.............................................................................................. 31
Finding a Percent of a Number ........................................................................... 32
Simple Interest...................................................................................................... 33
Compound Interest .............................................................................................. 34
Finance Charges and Installment Loans............................................................ 35
Finding What Percent One Number Is of Another Number .............................. 36
Finding the Whole When the Percent and Part Are Known.............................. 37
Percent of Increase or Decrease ........................................................................ 38
Customary Measurement .................................................................................... 39
Metric Measurement............................................................................................ 40
Converting Units Within the Metric System....................................................... 41
Converting Between the Customary and Metric Systems ............................... 42
Area and Perimeter .............................................................................................. 43
Probability ............................................................................................................. 44
ANSWER KEY ....................................................................................................... 45
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