Lesson 2-3

A number has a 5 in the tens place. The number also contains a digit whose value is 1/1000 the value of the 5 in the tens place. Which could be the expanded form of this number?

• (5 x 1000) + (4 x 100) + (5 x 1) + (6 x 0.1) + (8 x 0.01)

• (4 x 1000) + (2 x 100) + (5 x 10) + (2 x 1) + (5 x 0.1) + (4 x 0.01)

• (7 x 100) + (5 x 10) + (4 x 1) + (8 x 0.1) + (6 x 0.01) + (5 x 0.001)

• (9 x 100) + (5 x 10) + (3 x 1) + (4 x 0.1) + (5 x 0.01) + (2 x 0.001)

Tags

CCSS.5.NBT.A.3A

3. Compare using >, < or = a. 1.82 ___ 1.9 b. 0.43 ___ 0.05 c. 3.02 ___ 3.002

• a. 1.82 < 1.9 b. 0.43 > 0.05 c. 3.02 > 3.002

• a. 1.82 > 1.9 b. 0.43 < 0.05 c. 3.02 = 3.002

• a. 1.82 = 1.9 b. 0.43 > 0.05 c. 3.02 < 3.002

• a. 1.82 < 1.9 b. 0.43 < 0.05 c. 3.02 = 3.002

Tags

CCSS.5.NBT.A.3B

Compare these two amounts in a number sentence:

• 39,200.6 = 39,206

• 39,200.6 < 39,206

• 39,200.6 > 39,206

Tags

CCSS.5.NBT.A.3B

Round 46, 398 to the nearest ten thousand.

• e. 70,000

• d. 60,000

• c. 180,000

• b. 40,000

• a. 50,000

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Round 5.39 to the nearest tenth.

• 5.4

• 5.5

• 5.0

• 5.3

Tags

CCSS.5.NBT.A.4

Cara used estimation to find the difference between 2 numbers. Which difference is about 10?

• 43.1 – 38.4

• 60.3 – 49.7

• 45.7 – 45.6

• 52.5 – 26.8

The cost of one CD is 14.67 and the cost of another CD is $8.87. Estimate the total cost of the two CDs.

• Estimated total: $15 + $9 = $24

• Estimated total: $14 + $8 = $22

• Estimated total: $14 + $9 = $23

• Estimated total: $15 + $8 = $23

Which number, when rounded to the nearest hundredth is 42.36

• 42.35

• 42.366

• 42.358

• 42.4

Tags

CCSS.5.NBT.A.4

Estimate the difference between 567-314=.

• About 300

• About 50

• About 400

• About 100

3.478 is between what hundredths?

• 3.44 and 3.45

• 3.4 and 3.44

• 3.47 and 3.48

• 3.78 and 3.79

Tags

CCSS.5.NBT.A.3B