CK-12 Foundation
Ck 12: Arithmetic: Addition of Rational Numbers
[Free Registration/Login may be required to access all resource tools.] Learn how to add rational numbers.
CK-12 Foundation
Ck 12: Arithmetic: Comparison of Fractions, Decimals, and Percents
[Free Registration/Login may be required to access all resource tools.] Compare and order rational numbers
CK-12 Foundation
Ck 12: Arithmetic: Decimal Rounding Given Place Value
[Free Registration/Login may be required to access all resource tools.] Round decimals to a given place value.
CK-12 Foundation
Ck 12: Arithmetic: Decimals as Percents
[Free Registration/Login may be required to access all resource tools.] Write decimals as percents
CK-12 Foundation
Ck 12: Arithmetic: Decimals as Percents
[Free Registration/Login may be required to access all resource tools.] Write percents as decimals and decimals as percents
CK-12 Foundation
Ck 12: Arithmetic: Decimals in Words
[Free Registration/Login may be required to access all resource tools.] Understand how to read and write decimals to the ten-thousandths place.
CK-12 Foundation
Ck 12: Arithmetic: Decimal Subtraction
[Free Registration/Login may be required to access all resource tools.] Find the difference of decimals by subtracting vertically.
CK-12 Foundation
Ck 12: Arithmetic: Equivalent Fractions
[Free Registration/Login may be required to access all resource tools.] Identify equivalent proper fractions, mixed numbers and improper fractions
CK-12 Foundation
Ck 12: Arithmetic: Equivalent Ratios
[Free Registration/Login may be required to access all resource tools.] Among rational numbers, identify and write different forms of equivalent ratios.
CK-12 Foundation
Ck 12: Arithmetic: Estimation of Sums of Mixed Numbers and Fractions
[Free Registration/Login may be required to access all resource tools.] Estimate sums and differences of fractions and mixed numbers
CK-12 Foundation
Ck 12: Arithmetic: Fractions as Decimals Grade 7
[Free Registration/Login may be required to access all resource tools.] Write fractions and mixed numbers as terminating decimals
CK-12 Foundation
Ck 12: Arithmetic: Fractions as Percents Grade 6
[Free Registration/Login may be required to access all resource tools.] Convert given fractions into percentages.
CK-12 Foundation
Ck 12: Arithmetic: Fractions as Percents Grade 7
[Free Registration/Login may be required to access all resource tools.] Write fractions as percents by using proportions and equal ratios.
CK-12 Foundation
Ck 12: Arithmetic: Mental Math to Add and Subtract Decimals
[Free Registration/Login may be required to access all resource tools.] Find sums and differences of decimals using mental math.
CK-12 Foundation
Ck 12: Arithmetic:
[Free Registration/Login may be required to access all resource tools.] Solve for the unknown in a proportion using mental math.
CK-12 Foundation
Ck 12: Arithmetic: Percent of a Number Grade 8
[Free Registration/Login may be required to access all resource tools.] Find the percent of a number by using multiplication.
CK-12 Foundation
Ck 12: Arithmetic: Percent of a Number Grade 6
[Free Registration/Login may be required to access all resource tools.] Find the percent of a number using a proportion or key word clues.
CK-12 Foundation
Ck 12: Arithmetic: Percent of a Number Grade 7
[Free Registration/Login may be required to access all resource tools.] Find the percent of a number using fraction multiplication.
CK-12 Foundation
Ck 12: Arithmetic: Percent of Change Grades 8 9
[Free Registration/Login may be required to access all resource tools.] Learn how to solve real-world problems involving percentages.
CK-12 Foundation
Ck 12: Arithmetic: Percent of Change Grade 7
[Free Registration/Login may be required to access all resource tools.] Use percent of change to find a new amount.
CK-12 Foundation
Ck 12: Arithmetic: Percent of Change Grades 9 10
[Free Registration/Login may be required to access all resource tools.] Use the percent change formula to solve real-world applications.
CK-12 Foundation
Ck 12: Arithmetic: Percent of Decrease
[Free Registration/Login may be required to access all resource tools.] Find and understand the percent of decrease.
CK-12 Foundation
Ck 12: Arithmetic: Percent of Increase Grade 8
[Free Registration/Login may be required to access all resource tools.] Find and understand the percent of increase.
CK-12 Foundation
Ck 12: Arithmetic: Percent of Increase Grade 7
[Free Registration/Login may be required to access all resource tools.] Find the percent of an increase.