Comparing and Ordering Whole Numbers
Estimating
Exponents
Order of Operations
Mental Math
100

Belize's 2000 population was 249,183 people. Iceland's 2000 population was 276,365 people. Which country had more people.

Iceland had more people.

100

Estimate the sum by rounding to the place value indicated.

12,345 + 62,167; ten thousands

The sum is about 70,000.

100

Write the expression in exponential form.

3 × 3 × 3 × 3 × 3

35

100

Evaluate the expression using the order of operations.

2 × 7 - 32 ÷ 8

10

100
Evaluate.

17 + 5 + 3 + 15

40

200

Order the numbers from least to greatest:

675;     1,044;     497

497;     675;     1,044

200

Estimate the difference by rounding to the place value indicated.

4,983 - 2,447; thousands

The difference is about 3,000.

200

Write the expression in exponential form.

5 × 5 × 5 × 5

54

200

Evaluate the expresssion using the order of operations.

45 ÷ (3 + 6) × 3

15

200

Evaluate. 

4 × 13 × 5

260

300

Order the numbers from greatest to least.

7,467;     7,239;     7,498

7,498;     7,467;     7,239

300

Chelsea is planning the annual softball banquet for the 8 teams in the region. Each team has 18 members. Estimate how many plates she will need to buy if all the members attend.

Chelsea should buy about 160 plates.

300

Write the expression as repeated multiplication

19

1 × 1 × 1 × 1 × 1 × 1 × 1 × 1 × 1

300

Evaluate the expression using the order of operations.

100 ÷ 52 + 7 × 3

25

300

Use the Distributive Property to find the product.

6 × 35

210

400

Compare. Write <, >, or =.

1,556,982 ___ 1,556,983

<

400

Estimate the quotient using compatible numbers.

59 ÷ 4

About 15

400

Find the value.

45

1,024

400

Evaluate the expression using the order of operations.

(15 - 6)2 - 34 ÷ 2

64

400

Use the Distributive Property to find the product.

9 × 87

783

500

The area of Panama is 78,200 square kilometers, and the area of Lithuania is 65,200 square kilometers. Which country is smaller in area?

Lithuania is smaller in area.

500

Mr. Dehmel will drive 243 miles to the fair at 65 mi/h. About how long will his trip take?

About 4 hours.

500

Find the value.

26

64

500

Evaluate the expression using the order of operations.

(2 × 4)2 - 3 × (5 + 3)

40

500

Use the Distributive Property to find the product.

5 × 55

275

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