Vocabulary

Rounding

Adding and Subtracting Like Fractions

Adding and Subtracting Unlike Fractions

Mixed Numbers

100

A number formed by a whole number and a fraction

Mixed Number

100

Round to the nearest whole number.

1 5/6

2

100

2/5 + 1/5 =

3/5

100

8/9 - 1/3 =

5/9

100

3 1/3 + 1 1/3=

4 2/3

200

changing a number to its closest whole number in order to make multiplication easier

Rounding

200

Round to the nearest whole number.

7 1/8

7

200

11/12 - 1/12 =

5/6

200

1/2 - 1/6=

1/3

200

4 3/8 + 2 1/4=

6 5/8

300

the form used when the greatest common factor of the numerator and the denominator is 1

Simplest Form

300

Round to the nearest whole number.

10 7/9

11

300

5/8 + 3/8 =

1

300

4/5- 1/2=

3/10

300

9 3/4- 6 9/12=

3

400

fractions with different denominators

Unlike Fractions

400

What is the best estimate?

4 9/10 + 2 1/3 =

7

400

13/24 - 1/24=

1/2

400

3/8 - 1/10 =

11/40

400

5 3/4 + 6 1/8=

11 7/8

500

not an exact answer

Estimate

500

What is the best estimate?

12 1/6- 3/4 =

11

500

13/100 + 12/100=

1/4

500

9/12 + 1/4 =

1

500

6 3/8- 2 5/8=

3