Decimals!

Powers of 10

100

Find 10⁵ X 99

9,900,000

200

Find 84.52 X 10²

8,452

300

What number is 100 times greater than 0.02?

2

400

0.002 is 1/100 of what decimal?

0.2

500

5,438 / 10³

5.438

Adding and subtracting Decimals

100

23.3 + 12 + 36.7

72

200

$20-$12.07

$7.93

300

Suzanne buys a new bike helmet for $29.95. She also buys a water bottle for $8.49. Tax is included in the prices. She pays with two $20 bills. How much change does she receive?

$1.56

400

For breakfast, Julia buys an egg sandwich for $3.49 and a bottle of juice for $1.89. How much changes does she get from $10?

$4.62

500

What is the perimeter of a square yard if one side is 14.5 feet?

58 ft. 

Number notation

100

Write five hundred six and ninety-two thousandths in expanded form. 

(5 X 100) + (6 X 1) + (9 X 1/100) + (2 X 1/1000)

200

Write the following number in expanded for using exponents: 2,603,094

(2x10⁶) + (6X10⁵)+ (3X10³) + (9X10¹) + (4X10⁰) 

300

Write three hundred fifty thousand, nine hundred nine in standard form

350,909

400

Write 809.89 in expanded form

(8X100) + (9X1) + (8 X 1/10) + (9x 1/100)

500

Write the answer to 1,715/5 in expanded form using exponents. 

(3X10²) + (4X10¹) + (3X10⁰)

Multiplying

100

23 X 10²

2,300

200

357 X 14

4,998

300

0.12 X 105

12.6

400

0.78 X 57

44.46

500

27.9 X 0.3

8.37

Dividing

100

21,000 / m = 700. What is m?

30

200

228/19

12

300

845/21 

40 R5

400

1240/28

44 R8

500

864/10³

0.864