Unit 2 iReady Review

Place Value

100

Write 400,000 + 30,000 + 2,000 + 50 + 6 in standard form.

432,056

200

Write (7 x 100,000) + (5 x 1,000) + (4 x 100) + (1 x 10) + (8 x 1) in standard form

705,418

300

Write (6 x 1) + (4 x 1/10) + (3 x 1/100) + (9 x 1/1000) in standard form.

6.439

400

Write 8,402.75 in expanded form.

(8 x 1,000) + (4 x 100) + (2 x 1) + (7 x 1/10) + (5 x 1/100)

500

Write (2 x 10⁴) + (3 x 10³) + (7 x 10²) + (6 x 1/100) + (5 x 1/1000) in standard form

23,700.065

Compare and Order Decimals

100

Which is greater: 0.9 or 0.87?

0.9

200

Put in order from least to greatest: 1.04, 1.4, 1.25

1.04, 1.25, 1.4

300

True or False: 3.500 = 3.5

True

400

Order from greatest to least: 2.305, 2.35, 2.053

2.35, 2.305, 2.053

500

The pet store has dogs that have the following weights: 5.34 pounds, 10.7 pounds, and 9.346 pounds. Find the difference between the heaviest and lightest dog. 

5.36 pounds

Add and Subtract Decimals

100

Find the sum: 3.6 + 1.4

5.0

200

Subtract: 7.5 − 2.86

4.64

300

A bottle holds 2.75 liters of water. Another bottle holds 1.8 liters. How much water is there in all?

4.55 liters

400

A student ran 5.2 miles on Monday and 3.85 miles on Tuesday. How many more miles did the student run on Monday?

1.35 miles

500

A rope is 12.5 meters long. 4.78 meters are cut off. How much rope is left?

7.72 meters

Add and Subtract Fractions

100

Add: 3/8 + 1/4

5/8

200

Add: 2 3/5 + 1 7/10

4 3/10

300

Subtract: 1 5/9 − 2/3

8/9

400

A baker uses 3 3/4 cups of flour in the morning and 1 2/3 cups in the afternoon. How much flour is used in all?

5 5/12 cups

500

A rope is 6 5/6 meters long. First, 2 3/4 meters are cut off. Later, 1 2/3 meters are cut off. How much rope remains?

2 5/12 meters

Multiply and Divide Decimals by Powers of 10

100

6.4 x 10

64

200

48 / 100

0.48

300

0.45 x ________ = 450

1,000 or 10³

400

243 / ______ 0.0243

10,000 or 10⁴

500

8.3457 x 10⁷

83,457,000