Numbers and Numeration

Numbers and Numeration

by Scott Eboh

​NUMBERS AND NUMERATION

​* A 4-digit number is called THOUSAND.

​

* ​The BIGGEST 4- digit number is 9999.

​

​* The Smallest 4-digit number is 1000. 

​FACTS ABOUT 4-DIGIT NUMBERS

​SKIP COUNTING IN 10s

​when we skip count in 10s we add 10 continuously.

​

1000 + 10 = 1010

1010 + 10 = 1020 and so on...

​

1611 + 10 = 1621

​1621 + 10 = 1631

​1631 + 10 = 1641 and so on...

​SKIP COUNTING IN 20s

​When we skip count in 20s we add 20 continuously.

​

1240 + 20 = 1260

1260 + 20 = 1020

​1240, 1260, 1280, 1300, 1320 and so on...

​

1511 + 20 = 1531

​1531 + 20 = 1551

​1551 + 20 = 1571

​1531, 1551, 1571, 1591, 1611 and so on...

​SKIP COUNTING IN 20s

​1500 + 50 = 1550

1550 + 50 = 1600

​1500, 1550, 1600, 1650, 1700 and so on...

​

1701 + 50 = 1751

​1751 + 50 = 1801

​1801 + 50 = 1851

​1701, 1751, 1801, 1851, 1901 and so on...

Multiple Choice

The highest 4-digit number is?

• 9000

• 1999

• 9999

• 9100

Multiple Choice

When you add 1 to 999, the result is?

• 1000

• 991

• 100

• 0010

Fill in the Blanks

Fill in the Blanks

Fill in the Blanks

Multiple Choice

After the place value system THOUSAND, the next is....?

• Unit

• Ten Thousand

• Miilion

• Hundred