Unit 2 Math Review

Place Value

100

What number is in the ten thousands place?

452,763

5

200

What is the 2 worth in 264,953

200,000

300

Round to the nearest hundreds place

265

400

I am a 4 digit number.

My 3 is worth 3,000.

My 4 is worth 400.

My 2 is worth 20.

My other number is 1. 

What number am I?

3,421

500

I am a 6 digit number.

One of my 7s is worth 700,000. The other 7 is worth 1/10 as much. 

My 8 is worth 8 (100s) 

My 4 is worth 40.

My other digits are 0.

770,840

Powers of Ten

100

10 x 10 x 10 in standard notation 

1,000

200

10,000 In Products of Ten form

10 x 10 x 10 x 10

300

100 in Exponential Notation

10²

400

Solve: 625 x 10⁴ 

6,250,000

500

Write the number in expanded form using exponential notation.

2,532

(10³ x 2) + (10² x 5) + (10¹ x 3) + (10⁰ x 2) 

Writing Expressions

100

Write the expression.

The product of 3 and 4, then add 2

( 3 x 4) + 2

200

Write the expression.

Write the sum of 5 and 6, then divide by 1

(5 + 6) / 1

300

Write the expression.

Ally is shipping a gift. The gift weighs 5 pounds. The box weighs 8 ounces. How would you find the total weight in OUNCES?

(5 x 16) + 8

Multiplication

100

20 x 40

800

200

400 x 30

12,000

300

45 x 12

540

400

456 x 23

5,472

500

Jessie has 30 cans in 210 bags. How many cans in all does he have?

6,300

Division

100

30 / 15

2

200

300 / 15

20

300

There are 348 books that go on 40 book shelves. How many books fit on each shelf?

8 r 28

400

3215 / 8

401 r 7

500

236 / 15 

15 r 11