Unit 7 Review

Subtracting Fractions with Related Denominators

100

5/6 - 2/3 = ? 

1/6

200

4/2 - 10/8 = ?

6/8 or 3/4

300

1 3/4 - 1 6/16

6/16 

400

3 5/36 - 2 7/9= ? 

13/36

500

13 4/12 - 8 1/4 =? 

5 1/12

Subtracting Fractions with Unrelated Denominators

100

2/3 - 7/8 = ?

2/24 or 1/12

200

5/7 - 2/3 = ? 

1/21

300

2 6/7 - 1 1/2 = ? 

1 5/14

400

3 1/7 - 1 5/6 = ? 

1 13/42

500

5 6/7 - 2 10/12 =? 

3 2/84

Exponents as Whole Numbers

100

10¹

10

200

10⁰

1

300

10³

1,000

400

10⁶

100,000

500

10¹²

100,000,000,000

Expanded Form Using Exponents

100

580

(5 x 10²) + (8 x 10¹) 

200

4, 328

(4 x 10³) + (3 x 10²) + (2 x 10¹) + (8 x 10⁰)

300

267,893

(2 x 10⁵) + (6 x 10⁴) + (7 x 10³) + (8 x 10²) +     (9 x 10¹) + (3 x 10⁰)

400

589, 430, 672

(5 x 10⁸) + (8 x 10⁷) + (9 x 10⁶) + (4 x 10⁵) +         (3 x 10⁴) + (6 x 10²) + (7 x 10¹) + (2 x 10⁰)

500

456, 783, 952, 333

(4 x 10¹¹) + (5 x 10¹⁰) + (6 x 10⁹) + (7 x 10⁸) +  (8 x 10⁷) + (3 x 10⁶) + (9x 10⁵) + (5 x 10⁴) + (2 x 10³) + (3 x 10²) + (3 x 10¹) + (3 x 10⁰)