Unit 1 Assessment Review

Rounding

100

Round 271 to the nearest hundred

300

200

Round 98.21 to the nearest tenth

98.2

300

Round 1.097 to the nearest hundredth

1.100

400

What is 18.649 rounded to the nearest ten?

19

500

Which two statements about rounding decimals are correct? 

A. The number 5.066 rounded to the nearest hundredth is 5.07. 

B. The number 5.074 rounded to the nearest hundredth is 5.08. 

C. The number 5.108 rounded to the nearest hundredth is 5.11. 

D. The number 5.025 rounded to the nearest hundredth is 5.02.

E. The number 5.117 rounded to the nearest hundredth is 5.10.

A.

C.

Exponents

100

What is the value of 10⁸?

100,000,000

200

What is the value of 10⁷?

10,000,000

300

What exponent is equal to 10 x 100 =

10³

400

What exponent is equal to 1000 x 1000

10⁶

500

What exponent is equal to 1000 x 10000

10⁷

Adding decimals

100

42.00 + 11.75

53.75

200

2.097 + 23.07

25.167

300

22.971 + 12.371

35.342

400

1.774 + 21.079

22.853

500

31.099 + 2.04

33.139

Subtracting decimals

100

42.00 - 11.75

30.25

200

26.84 - 100.97

74.13

300

Jason’s backpack weighed 13.09 pounds. Kara’s backpack weighed 15.3 pounds. How much heavier was Kara’s backpack than Jason’s backpack?

Kara's backpack is 2.21  pounds heavier

400

Cedric bought a printer cartridge for $29.87. He gave the cashier a fifty-dollar bill. How much change should Cedric receive from the cashier?

Cedric received $10.13 in change

500

100 - 12.87

87.13

Inequalities/Shifts

100

1 shift =

10

200

2 shifts = 

100

300

43.29____________43.5

<

400

18.44 _______ 18.4

>

500

19.431 _____ 19.043

>