Random
Solving Problems with Denominators of 10 and 100
Adding
Subtracting
Draw a Model or write an Equation.
100

What is an example of a unit fraction?

A unit fraction tells the part of a whole that each piece represents. The numerator is always 1.

100

1/10 + 11/100

21/100

100

2/10 + 6/10 

8/10 or 4/5

100

8/9 - 4/9

4/9

100

Draw a model to show:

 1 3/8 + 4/8

1 7/8

200

Write the fraction 5/6 as a sum of unit fractions.

1/6 + 1/6 + 1/6 + 1/6 + 1/6 = 5/6

200

70/100 - 2/10

50/100 or 1/2

200

6/12 + 2/12 + 3/12

11/12

200

9 4/5 - 6 2/5

3 2/5

200

Draw a model to show:

6/8 - 4/8

2/8 simplified 1/4

300

What is 10/4 as a mixed number?

2 2/4 or 2 1/2

300

10/100 + 2/10 + 3/10 

60/100 or 6/10 or 3/5

300

2 3/8 + 5 4/8

7 7/8

300

8 - 6/7

7 1/7

300

Draw a number line to find the sum.

2/8 + 3/8

Start at 2/8 and make 3 jumps to get 5/8

400

What is 2 4/6 renamed as a fraction greater than one?

16/6

400

Fill in the blanks to find the sum.

50/100 + 2/10 = 50/100 + _____ = _____

Fill in the blanks to find the sum.

50/100 + 2/10 = 50/100 + 20/100 = 70/100

400

2 1/10 + 3 9/10 


6

400

6 3/8 - 3 5/8

2 6/8 or 2 3/4

400

Mia runs 2/10 of a mile on Monday and 7/10 of a mile on Tuesday. How much does Mia run. Write an equation and solve.

2/10 + 7/10 = 9/10

500

  < or >

1/2 + 1/5 or 1/6 + 1/8

< or >

1/2 + 1/5 > 1/6 + 1/8

*Because 1/2 and 1/5 are closer to a whole.

*5/10 + 2/10 = 7/10 4/24 + 3/24 = 7/24

500

If it 3/100 or 3/10 ?

1. 40/100 - 1/10

2. 4/10 - 10/100

3. 4/100 - 1/100

1. 40/100 - 1/10 = 3/10 

2. 4/10 - 10/100 = 3/10

3. 4/100 - 1/100 = 3/100

500

2 3/6 + 1 7/6

3 10/6 or 4 4/6 or 4 2/3

500

A. 15 - 12 2/6 

AND

B. 12 2/6 - 10 5/6

A. 2 4/6 or 2 2/3

B. 1 3/6 or 1 1/2

500

Henry brings a mixture of pretzels, popcorn, and goldfish to school in a bag. 7/12 of the bag has goldfish, 4/12 has pretzels, and 1/12 has popcorn. How much more goldfish does Henry have then pretzels? How much pretzels and popcorn in the bag does he have? Write an equation and solve.

1. 7/12 - 4/12 = 3/12 more goldfish.

2. 4/12 + 1/12 = 5/12 bag of pretzels and popcorn.

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