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  5. Microlesson: Multiplying Fractions With Models

Microlesson: Multiplying Fractions with Models

Authored by Maria Durham

Mathematics

1st - 5th Grade

CCSS covered

Used 2+ times

Microlesson: Multiplying Fractions with Models
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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Will 34⋅13\frac{3}{4}\cdot\frac{1}{3} be bigger or smaller than 34\frac{3}{4} ?

bigger

smaller

Answer explanation

1/3 is a number less than 1, so multiplying anything by 1/3 will make the value smaller.

Tags

CCSS.5.NF.B.5B

2.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

How many rectangles did Mr. J cut the area model into?

(a)  

Tags

CCSS.3.MD.C.5A

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which model correctly shows the problem 26×15\frac{2}{6}\times\frac{1}{5}  ?

Media Image

Media Image

Media Image

Media Image

Answer explanation

One side of the rectangle should be cut into 5 pieces and one shaded on. the other side should be cut into 6 pieces and 2 shaded in.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2A

4.

MATH RESPONSE QUESTION

2 mins • 1 pt

Media Image

According to the model, what is the product of 26×15\frac{2}{6}\times\frac{1}{5}  ? Write your answer in simplest form.

110\frac{1}{10}

Mathematical Equivalence

ON

Answer explanation

2 out of 20 rectangles are shaded. So 220\frac{2}{20} simplifies to be 110\frac{1}{10}

Tags

CCSS.5.NF.B.7A

CCSS.5.NF.B.7C

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which problem does the model represent?

15×26\frac{1}{5}\times\frac{2}{6}

13×25\frac{1}{3}\times\frac{2}{5}

25×15\frac{2}{5}\times\frac{1}{5}

25×25\frac{2}{5}\times\frac{2}{5}

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

6.

MATH RESPONSE QUESTION

2 mins • 1 pt

Media Image

According to the model, what is the value of the product 25×15\frac{2}{5}\times\frac{1}{5} ?

225\frac{2}{25}

Mathematical Equivalence

ON

Answer explanation

2 out of 25 rectangles were shaded in twice.

Tags

CCSS.3.OA.A.2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which model represents the answer 615\frac{6}{15}  ?

Media Image
Media Image
Media Image
Media Image

Tags

CCSS.5.NF.B.5B

CCSS.4.NF.A.1

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