Unit 7 Bridges Review

Powers of 10/Ms.G Mystery

100

Multiply each whole number or decimal by powers of 10, using the steps shown in the example. 

Ex. 42 x 10³= 42 x ( 10 x 10 x 10 ) = 42 x 1,000 = 42,000

25 x 10² = 

25 x 10² = 25 x (10x10) = 25 x 100 = 2500

200

Multiply each whole number or decimal by powers of 10, using the steps shown in the example. 

Ex. 42 x 10³= 42 x ( 10 x 10 x 10 ) = 42 x 1,000 = 42,000

149 x 10⁴ = 

149 x 10⁴ = 149 x (10x10x10x10) = 149 x 10,000 =1,490,000

300

10⁵

^{EX. 10 2 = 10 x 10 = 100}

10⁵ = 10 x 10 x 10 x 10 x 10 = 100,000

400

What is one item your teacher always has with them?

answer will vary

500

Where  did your teacher get engaged last summer? When is your teacher getting married? (Extra 50 for exact date)

Lake Tahoe, California (CA.) - October 16th, 2026

Dividing Decimals

100

3.6 ÷ 0.4 = 

9

200

7.2 ÷ 0.9 = 

8

300

15.5 ÷ 5 = 

3.1

400

9.6 ÷ 3 = 

3.2

500

6.4 ÷ 2 = 

3.2

Multiplying Decimals

100

15.3 x 12

183.6

200

231 x 3.9

900.9

300

774.6 x 4

3098.4

400

45 x 367.4

16533

500

5.403 x 457

2469.171

Dividing/Multiplying Decimals with Powers of 10

100

5.32 x 10²

532 

200

4223.12 / 10³

 4.22312

300

0.0752 x 10⁴

752 

400

4,325.201 / 10¹

 432.5201

500

2,349.567 / 10³ =

2.349567

Ms.G Bonuses (random points)

100

Where was Ms. Goldfein born and what year? 500 Points

Barrington, IL - 2001

200

What is Ms. Goldfein's favorite color? 25 points

Yellow

300

What are some of Ms. Goldfein's hobbies?

Showing dogs (100) Working out (100) Reading (100) Hot Yoga (200) Target (50)