Subtraction (1)
Find the missing number in addition or subtraction sentences involving numbers up to 20
Activities
The Meaning of Subtraction
“Illustrate subtraction as “taking away” or “comparing” elements of sets”
Measures of Length, Mass, Capacity, and Time
Convert common units of lengths uch as meter to centimeter and vice versa
The Meaning of Subtraction II
Find the missing number in addition or subtraction sentences involving numbers up to 20
Kinds of Fractions
Identify proper fractions, improper fractions, and mixed numbers
Writing Subtraction Sentences
Visualize, represent, and subtract one-digit numbers with minuends through 20.
Improper Fractions and Mixed Numbers
Rewrite improper fractions intomixed numbers, and vice versa
Renaming Improper Fractions as Mixed Numbers and Vice Versa
Rewrite improper fractions intomixed numbers, and vice versa
Finding the Difference (2)
Visualize, represent, and subtract one-digit numbers with minuends through 20.
Renaming Mixed Numbers as Improper Fractions and Vice Versa
Rewrite improper fractions intomixed numbers, and vice versa
Completing Subtraction Sentences (2)
Visualize, represent, and subtract one-digit numbers with minuends through 20.
Adding and Subtracting Similar Fractions
Add and subtract similar fractions without and with regrouping
Adding and Subtracting Similar Fractions II
Add and subtract similar fractions without and with regrouping
More on Subtraction
Visualize, represent, and subtract one- or two-digit numbers with minuends up to 100 without regrouping
Adding and Subtracting Similar Fractions III
Add and subtract similar fractions without and with regrouping
Finding the Difference (3)
Visualize, represent, and subtract one- or two-digit numbers with minuends up to 100 without regrouping
Adding and Subtracting Similar Fractions IV
Add and subtract similar fractions without and with regrouping
Subtraction (2)
Visualize, represent, and subtract one- or two-digit numbers with minuends up to 100 without regrouping
Adding and Subtracting Similar Fractions V
Add and subtract similar fractions without and with regrouping
Subtraction of Numbers Within 100
Find the missing number in addition or subtraction sentences involving numbers up to 20
Repeating Patterns
Determine the next/missing term/s in a given repeating pattern using one attribute (letters, numbers, colors, figures, sizes, etc.)
Subtracting Similar Fractions and Whole Numbers
Add and subtract whole number and a mixed number
Patterns
Determine the next/missing term/s in a given repeating pattern using one attribute (letters, numbers, colors, figures, sizes, etc.)
Adding and Subtracting Similar Fractions and Whole Numbers
Add a whole number and a proper fraction
Patterns II
Determine the next/missing term/s in a given repeating pattern using one attribute (letters, numbers, colors, figures, sizes, etc.)
Adding and Subtracting Similar Fractions and Whole Numbers II
Add a whole number and a proper fraction
Patterns of Colors and Shapes
Determine the next/missing term/s in a given repeating pattern using one attribute (letters, numbers, colors, figures, sizes, etc.)
Adding and Subtracting Similar Fractions and Whole Numbers III
Add a whole number and a proper fraction
Adding and Subtracting Similar Fractions and Whole Numbers IV
Add a whole number and a proper fraction
Patterns III
Determine the next/missing term/s in a given repeating pattern using one attribute (letters, numbers, colors, figures, sizes, etc.)
Fractions
Rewrite improper fractions intomixed numbers, and vice versa
Equivalent Expressions
Construct equivalent number expressions using addition and subtraction
Factors
Find all the factors of a given number up to 100
Equivalent Expressions II
Identify and create patterns to compose and decompose usingaddition
Factors and the Greatest Common Factor
Find the common factors of two or more numbers up to 100
Equivalent Expressions III
Construct equivalent number expressions using addition and subtraction