NF.3.5

Express a fraction with denominator 10 as an equivalent fraction with denominator 100, and use this technique to add two fractions with respective denominators 10 and 100. For example, express 3/10 as 30/100, and add 3/10 + 4/100 = 34/100.

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Formative Assessments
Formative Assessments
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Students express a fraction with a denominator of 10 as an equivalent fraction with a denominator of 100 and are then asked to add the fraction to another fraction with a denominator of 100.
Adding Five Tenths
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Students are asked if an equation involving the sum of two fractions is true or false. Then students are asked to find the sum of two fractions.
Tenths and Hundredths
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Students are asked if an equation is true or false. Then students are asked to find the sum of two fractions.
Hundredths and Tenths
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Students express a fraction with a denominator of 10 as an equivalent fraction with a denominator of 100 and are then asked to add the fraction to another fraction with a denominator of 100.
Seven Tenths
Virtual/Hands-on Manipulatives
Virtual/Hands-on Manipulatives
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CPALMS: This powerful interactive virtual manipulative tool supports teachers in building a conceptual understanding of fractions and decimal comparisons through manipulating fractions and representing them with a wide variety of visual models.
Conceptually Comparing Fractions and Decimals
Assessment Questions
Assessment Questions
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Equation Editor 1
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Multiple Choice
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Equation Editor 2
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Equation Editor 3
Videos of Expert Instruction
Videos of Expert Instruction
Use Real Link and Title
Use Real Link and Title
Use Real Link and Title
Hook/ Performance Tasks
Hook/Performance Tasks
Achievement Level Descriptors Logo. Includes a dark gray document symbol on a yellow background.
The purpose of this task is for students to make true statements from the equations that are given.
IM:  How Many Tenths and Hundredths?
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The purpose of this task is for students to add tenths and hundredths together.
IM:  Adding Tenths and Hundredths
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The purpose of this task is for students to show they understand the connection between fraction and decimal notation by writing the same number both ways.
IM:  Expanded Fractions and Decimals
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The purpose of this task is for students to explain why two fractions are equivalent by illustrating their explanation.
IM:  Fraction Equivalence
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The purpose of this task is for students to write a fraction of a dollar in both fraction and decimal form.
IM:  Dimes and Pennies