Table of Contents
   

In this section, you will find:

General Introduction: Numerals are Symbols for Amounts
  NUMERALS 4
   
The Place-Value Numeral System
  WHAT THE SYSTEM IS 5
  READING AND WRITING NUMERALS IN EACH PLACE 6
   
Arithmetic Operations
HOW TO ADD NUMBERS 13
HOW TO SUBTRACT NUMBERS 17
CHECKING SUBTRACTION ANSWERS 20
HOW TO MULTIPLY NUMBERS 22
HOW TO DIVIDE NUMBERS 31
CHECKING DIVISION ANSWERS 35
“BY” AND “INTO” ARE TWO IMPORTANT WORDS 35
USING DIVISION IN “RATE” PROBLEMS 36
MORE USES FOR RATE PER UNIT 38
ROUNDING NUMBERS 41
CHECKING THE REASONABLENESS OF AN ANSWER 44
WHICH OPERATION DO I USE? 47
CALCULATING AN AVERAGE 51
MULTIPLICATION TABLE 52
   
Decimals
WHAT ARE DECIMALS? 57
ROUNDING DECIMALS 62
ADDITION WITH DECIMALS 63
SUBTRACTION WITH DECIMALS 64
MULTIPLICATION WITH DECIMALS 65
DIVISION WITH DECIMALS 66
   

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