Interactive Math Practice & Diagrams

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3. What's the place value of (5) in each of the following?

76,561hundreds

8,509hundreds

914,851tens

530hundreds

23,185ones

145,003thousands

4. Write the numbers in the standard form:

5,000 + 400 + 20 + 9 5,429

6,000 + 300 + 2 6,302

30,000 + 6,000 + 300 + 80 36,380

7,000 + 800 + 10 + 6 7,816

5. Fill in the blanks to complete the following number patterns:

1,054 1,055 1,056 1,057 1,058

7,620 7,630 7,640 7,650 7,660

4,038 4,138 4,238 4,338 4,438

3,715 4,715 5,715 6,715 7,715

3,742 3,732 3,722 3,712 3,702

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1.2 Comparing and Ordering Numbers

Adam collected $2,234 last year, and Maya collected $2,319, who collected more?

Adam has 2 thousands, 2 hundreds, 3 tens, 4 ones.
Maya has 2 thousands, 3 hundreds, 1 ten, 9 ones.

Notice that Maya has more money than Adam, or we can say Adam has less money than Maya.

We write this statement in math as: 2,319 > 2,234 or 2,234 < 2,319

Exercises

1. Circle the number that is greater in each pair:

a) 5062 , 5045

b) 9323 , 8999

2. Circle the number that is less in each pair:

a) 4620 , 4600

b) 3762 , 4031

3. Write >, < or = :

493 < 501

4031 < 5931

7761 < 7762

3211 < 3220

9631 = 9631

97456 < 97645

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Ascending order

Arranging numbers from the least to the greatest is called ascending order.

Example: Write the following in an ascending order:
8430, 2399, 7419, 1299

Solution: 1299 < 2399 < 7419 < 8430

Exercise

Write the following numbers in an ascending order:

a) 25, 41, 37, 99

25 < 37 < 41 < 99

b) 10, 70, 49, 59

10 < 49 < 59 < 70

c) 809, 739, 167, 341

167 < 341 < 739 < 809

d) 4312, 3512, 6000, 5799

3512 < 4312 < 5799 < 6000

e) 7233, 7200, 7300, 7001

7001 < 7200 < 7233 < 7300

f) 14299, 3410, 4020, 999

999 < 3410 < 4020 < 14299

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Descending order

Ordering numbers from the greatest to the least is called descending order.

Example: Write the following in a descending order:
9430, 2399, 1299, 5419

Solution: 9430 > 5419 > 2399 > 1299

Exercise

Write the following numbers in a descending order:

a) 30, 40, 25, 72

72 > 40 > 30 > 25

b) 70, 49, 56, 10

70 > 56 > 49 > 10

c) 133, 167, 120, 740

740 > 167 > 133 > 120

d) 859, 842, 456, 291

859 > 842 > 456 > 291

e) 5640, 6321, 6452, 5550

6452 > 6321 > 5640 > 5550