## S k i l l i n A r i t h m e t i cInternet Explorer 6 is the browser to view Prologue 1 Elementary Addition
Sums less than 10. Composing 10 itself. Prologue 2 The Multiplication Table Lesson 1 Powers of 10
Which numbers are the Lesson 2 The Meaning of Decimals
Which numbers are the
How do we multiply a decimal by a power of 10? How do we
divide a decimal by a power of 10?
How do we add mentally by composing a multiple of 10? How do we add by endings? How do we add the units from left to right? How can we add by rounding off?
How do we add whole numbers? How do we add decimals?
What is the problem in subtraction?
How do we subtract by compensating?
What is "multiplication"?
In writing, how do we multiply whole numbers?
How do we multiply decimals? Lesson 10 The Meaning of Division The divisor, the dividend, and the quotient. Lesson 11 Short Division
How do we do short division? Lesson 12 Dividing Decimals
When the divisor is a Lesson 13 Percent with a Calculator
How do we use a calculator to solve a percent problem?
Lesson 14 Parts of Natural Numbers 1
Which numbers are the natural numbers? Lesson 15 Parts of Natural Numbers 2
What do we mean by a Lesson 16 Ratio and Proportion 1
What do we mean by the Lesson 17 Ratio and Proportion 2
What is the Theorem of the Alternate Proportion? What is
the Theorem of the Same Multiple? Lesson 18 Proportionality
What does it mean to say that two quantities are
A fraction is a Lesson 20 Unit Fractions
What is a Lesson 21 Equivalent Fractions
What are equivalent fractions? How can we know when
fractions are equivalent?
Lesson 22 Comparing Fractions
How can we compare fractions with the same
numerator? How can we compare fractions with the same
denominator? Lesson 23 Fractions into Decimals
What is a "decimal"? How can we change a fraction to a decimal? Lesson 24 Adding and Subtracting Fractions
How do we add or subtract fractions?
How do we multiply a fraction by a whole number? How do
we multiply a fraction by a fraction?
Lesson 26 The Meaning of Multiplying Fractions
What does it mean to multiply a number Lesson 27 Percents are Ratios
How do percents express ratios? Lesson 28 Percent of a Number
How can we find the Amount?
How can we find the Percent by the Lesson 30 Percent Increase or Decrease
"Out of" problems and "difference" problems. Lesson 31 Prime Numbers
What is a prime number? How can we find the prime factorization of a number?
How can we find the GCD and the LCM of two numbers from their prime factorizations? |