Five-Minute Check (over Lesson 1–5)

Main Idea and Vocabulary

Example 1:Expanded Form

Example 2:Compare Decimals

Example 3:Compare Decimals

• I will compare decimals.

• equivalent decimals

Expanded Form

Roano ran 1.68 miles. Wangari ran 1.50 miles. Who ran the longer distance?

One Way: Use a number line.

Numbers to the right are greater than numbers to the left. Since 1.68 is to the right of 1.50, 1.68 > 1.50.

Compare Decimals

Another Way: Use place value.

Line up the decimal points.

Compare the digits in the greatest place.

Continue comparing until the digits are different.

1.501.68 1.50

1.681.501.68

The ones digits are the same.

In the tenths place, 5 < 6. So, 1.50 < 1.68.

Compare Decimals

Answer: So, Roano ran the longer distance.

1. A

2. B

3. C

A. Melinda

B. Fredrick

C. Both walk the same distance.

Melinda walks 2.25 miles to work and Fredrick walks 2.47 miles to work. Who walks the longer distance to work?

0% 0%0%

Compare Decimals

Replace with <, >, or = to make 0.730 0.73 a true sentence.

0.730 = 0.730 Annex a zero. The value does not change.

Answer: So, 0.730 = 0.73.

1. A

2. B

3. C

A. <

B. >

C. =

Replace with <, >, =, or + to make 0.65 0.650 a true sentence.

0% 0%0%

Compare Decimals

Replace with <, >, or = to make 0.8 0.87 a true sentence.

0.87 → 0.87

Annex a zero to the right of 0.8 so that it has the same number of decimal places as 0.87.

Answer: Since 0 < 7 in the hundredths place, 0.8 < 0.87.

0.8 → 0.80

1. A

2. B

3. C

A. <

B. >

C. =

Replace with <, >, =, or + to make 5.3 5.32 a true sentence.

0% 0%0%

End of the Lesson

Five-Minute Check (over Lesson 1–5)

Image Bank

Math Tool Chest

Represent Decimals

1. A

2. B

3. C

4. D0% 0%0%0%

(over Lesson 1–5)

A. 30 + 0.04; thirty-four hundredths

B. 0.3 + 4; thirty-four hundredths

C. 0.3 + 0.04; thirty-four hundredths

D. 0.03 + 0.04; thirty-four hundredths

Write 0.34 in expanded form and word form.

1. A

2. B

3. C

4. D0% 0%0%0%

(over Lesson 1–5)

A. 4 + 0.2 + 0.06 + 0.002; four and two hundred sixty-two thousandths

B. 0.4 + 0.2 + 0.6 + 0.2; four and two hundred sixty-two thousandths

C. 0.04 + 0.2 + 0.06 + 0.2; four and two hundred sixty-two thousandths

D. 4 + 0.02 + 0.06 + 0.02; four and two hundred sixty-two thousandths

Write 4.262 in expanded form and word form.