Unit 1 Challenge!

Place Value

100

7,893

The digit 9 represents:

90

200

7,893 

a) The digit 7 represents:

b) The digit 3 represents:

a) 7,000

b) 3

300

345,231 _______ 345,205

>

400

7,987,201 ____ 7,988,201

<

500

203,459

a) The 2 is in the ___________ place

b) The 5 is in the ___________ place

c) The 4 is in the ____________ place

a) hundred thousands

b) tens

c) hundreds

Addition and Subtraction

100

67+43=

110

200

67-43=

24

300

782+1876=

2,658

400

2658-782=

1876

500

398,072-4,985=

393087

Geometry

100

What is a LINE?  Please draw one on your whiteboard

<------------------------------------->

A line is a straight path that goes on forever in both directions.

200

a)What is a Point? Please write one on your whiteboard

b)What is a Line Segment?  Please write one on your whiteboard.

a) .

A point is a location in space

b) .________________________.

A line segment is made up of two points and a straight path between them. The two points are called Endpoints

300

What is a Ray?  Please write one on your whiteboard.

.---------------->

A Ray is a straight path that starts at one endpoint and goes on forever in ONE direction.

400

Please draw and label the Right Angel <CDE

(see teacher whiteboard)

500

What does the word "perpendicular" mean?  Draw a quadrilateral with 2 sets of perpendicular sides.

Perpendicular line segments cross or meet at a 90 degree angle.  Quadrilaterals that have 2 sets of perpendicular sides: Rectangles, squares

Estimation

100

Estimate:

23+96=

20+90=110

25+100=125

200

Estimate:

345-221=

300-200=100

350-220=30

350-200-150

300

Round 54,289 

a) to the nearest 100

b) to the nearest thousand

c) to the nearest 10 thousand

a) 54,300

b) 54,000

c) 50,000

Measurement

100

How many inches in a foot?

12

200

How many feet in a yard?

3

300

How many inches in 2 feet?

24

400

How many feet in 5 yards?

15 feet

500

How many inches is 3 yards?

36 inches