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STOPIC C:
STOPIC C:
Addition and Subtraction of Fractions, Whole Numbers, and Mixed Numbers
Addition and Subtraction of Fractions, Whole Numbers, and Mixed Numbers
Dear Family,
Recently, your student learned to add and subtract with fractions that are less than 1. Now, your student is learning to add and subtract with fractions, whole numbers, and mixed numbers. They use multiple methods that may include number lines, number bonds, or the arrow way. Your student is encouraged to use a method that makes sense based on the numbers in the problem. They begin to notice that some methods are more efficient than other methods. Your student is also encouraged to use estimation to determine whether the answer makes sense.
KEY TERMS
minuend
subtrahend
AT HOME ACTIVITY
Cooking with Fractions
Look for recipes with fractional amounts, such as 1 and 1/2 cups or 3/4 tablespoons. Ask your student addition and subtraction questions by using the fractional measurements in the recipe.
“How many total cups of flour and sugar are used in this recipe?”
“How many more teaspoons of baking powder are used than teaspoons of vanilla?”
“How many cups of water would we need for 2 batches of this recipe?”
Find a sample of our lessons below to help support MATH TALK at home.
Students also have these in their APPLY workbook.
Lesson 10
Add whole numbers and mixed numbers and add mixed numbers with related units.
I can add like units or make the next whole number to add mixed numbers. I can show my thinking by using a number line, the arrow way, or a number bond.
EM2_G5_M2_TC_L10_PracticePartner.pdfEM2_G5_M2_TC_L10_PracticeSolutions.pdfLesson 11
Add mixed numbers with unrelated units.
I can use what I know about addition of whole numbers and addition of fractions to add mixed numbers with unrelated units. I can rename fractions to make like units to find the sum of mixed numbers with unrelated units.
EM2_G5_M2_TC_L11_PracticePartner.pdfEM2_G5_M2_TC_L11_PracticeSolutions.pdfLesson 12
Subtract whole numbers from mixed numbers and mixed numbers from whole numbers.
I can use different methods to subtract a fraction or a whole number from a mixed number. I can show my thinking on a number line and add on by using the arrow way or by decomposing a mixed number into parts.
EM2_G5_M2_TC_L12_PracticePartner.pdfEM2_G5_M2_TC_L12_PracticeSolutions.pdfLesson 13
Subtract mixed numbers from mixed numbers with related units.
I can subtract mixed numbers by renaming fractional parts of mixed numbers with like units. I can subtract by using different methods and can choose the approach I think is most efficient for the problem.
EM2_G5_M2_TC_L13_PracticePartner.pdfEM2_G5_M2_TC_L13_PracticeSolutions.pdfLesson 14
Subtract mixed numbers from mixed numbers with unrelated units.
I can use what I know about subtracting fractions with unrelated units to subtract mixed numbers with unrelated units. I can use various subtraction methods to solve real-world problems involving subtraction of mixed numbers with unrelated units.
EM2_G5_M2_TC_L14_PracticePartner.pdfEM2_G5_M2_TC_L14_PracticeSolutions.pdfReport abuse