Unit 3 Review

Adding/Subtracting Decimals

Dividing/Multiplying by powers of 10

Writing in expanded form

Rounding Decimals

Comparing Decimals

100

What is 0.07 + 0.59?

A.) 1.12

B.) 0.56

C.) 1.02

D.) 0.66

100

What is 34 x 100

A.) 0.34

B.) 34.00

C.) 3.400

D.) 3,400

100

How would you say 25.84 in Number Name form (How do you say it)

A.) Twenty five and eighty four hundredths

B.) Twenty Five and Eight hundred forty five thousandths

C.) Twenty five and fourty eight hundredths

D.) Fifty two and Eight hundred forty five hundredths

A.) Twenty five and eighty four hundredths

100

Round 14.58 to the nearest tenth

A.) 14.50

B.) 14.68

C.) 14.60

D.) 14.58

C.) 14.60

100

Which number is bigger? 0.997 or 1.001?

A.) 0.997

B.) 1.001

200

What is 3.7 + 6.38?

A.) 9.08

B.) 10.08

C.) 6.75

D.) 9.98

B.) 10.08

200

258 / 10

A.) 25.8

B.) 258.0

C.) 2.58

D.) 00.258

A.) 25.8

200

Which of these is 45.8 written in expanded form?

A.) (4 x 10) + (50 x 1) + (8 x 0.1)

B.) (4 x 1) + (5 x 0.1) + (8 x 0.01)

C.) (4 x 10) + (5 x 1) + (8 x 0.1)

D.) (40 x 1) + (5 x 1) + (8 x 0.01)

C.) (4 x 10) + (5 x 1) + (8 x 0.1)

200

Round 0.051 to the nearest tenth:

A.) 0

B.) 0.100

C.) 0.151

D.) 0.111

B.) 0.100

200

Which number is the smallest?

A.) 0.1034

B.) 0.0463

C.) 0.6000

D.) 0.0610

B.) 0.0463

300

What is 23.45 + 94.6?

A.) 32.91

B.) 118.05

C.) 11.805

D.) 329.1

B.) 118.05

300

What is 972 / 1000

A.) 972,000

B.) 0.972

C.) 0.000972

D.) 9.72

B.) 0.972

300

What is 6.025 in "Number Name" (how would you say it)

A.) Six and twenty five hundredth

B.) Six and zero and twenty five thousandth

C.) Six and twenty five ten thousandth

D.) Six and twenty five thousandth

300

Round 273.409 to the nearest whole number

A.) 273.409

B.) 274

C.) 273.4

D.) 273

300

BONUS QUESTION!!! In the Christmas song, "12 Days of Christmas" what are there 5 of?

5 Golden Rings

400

7 - 0.04

A.) 6.96

B.) 0.03

C.) 3.96

D.) 6.03

A.) 6.96

400

What is 0.46 x 100?

A.) 0.0046

B.) 000.46

C.) 4.60

D.) 46

400

What is 0.347 is expanded form?

A.) (3 x 0.1) + (4 x 0.001) + (7 x 0.001)

B.) (3 x 1) + (4 x 0.01) + (7 x 0.001)

C.) (3 x 0.1) + (4 x 0.01) + (7 x 0.001)

A.) (3 x 0.1) + (4 x 100) + (7 x 0.001)

C.) (3 x 0.1) + (4 x 0.01) + (7 x 0.001)

400

Round 396.61 to the nearest tens place

A.) 396

B.) 396.60

C.) 400

D.) 396.00

C.) 400

400

Which Decimal is bigger?

0.000019 or 0.00019

0.00019

500

What is 3.8 + 38 + 38.3

A.) 70.1

B.) 80.1

C.) 68.3

D.) 93.3

B.) 80.1

500

289 / 100,000

A.) 0.289

B.) 0.0289

C.) 0.00289

D.) 0.000289

C.) 0.00289

500

What is 5.276 in expanded form?

A.) (5 x 1) + (2 x 0.1) + (7 x 0.01) + (6 x 0.001)

B.) (5 x 10) + (2 x 1) + (7 x 0.01) + (6 x 0.001)

C.) (5 x 1) + (2 x 0.1) + (7 x 0.001) + (6 x 0.0001)

D.) (5 x 1) + (2 x 0.1) + (7 x 10) + (6 x 0.001)

A.) (5 x 1) + (2 x 0.1) + (7 x 0.01) + (6 x 0.001)

500

Round 1363.50983 to the nearest ten thousandth

A.) 1363.50983

B.) 1363.510

C.) 13,000

D.) 1363.5098

500

Rank the following decimals from least to greatest:

1.003, 0.02, 0.0093, 0.801, 0.021

0.0093, 0.02, 0.021, 0.801, 1.003