Tens and Ones
Ordering Numbers
Expanded Form
Rounding
Skip Counting
100

How many tens in 45

4 tens = 40

100

Order these numbers from least to greatest

23, 12, 67, 42, 97

12, 23, 42, 67, 97

100

Write 62 in expanded form.

60+2

100

Round to the nearest 10

542

540

100

Count forward by 2's to 20 starting at 2

2,4,6,8,10,12,14,16,18,20

200

How many ones in 49

9

200

Order these numbers from greatest to least:

21, 56, 12,  90, 44

90, 56, 44, 21, 12

200

Write 93 in expanded form.

90+3

200

Round to the nearest 10s 

3,788

3,790

200

Count forwards by 5's starting at 10 up to 50.

5,10,15,20,25,30,35,40,45,50

300

What is the value of 8 in the number 38?

8 ones

300

Mrs. Ashacker ordered these numbers from least to greatest.  Is she correct?  

31, 13, 64, 78, 77

13, 31, 64, 77, 78

300

Write 12 in expanded form.

10+2

300

Round to the nearest 100s

312

300

300

Count backwards by 10's starting at 84.

84,74,64,54,44,34,24,14,4

400

What is the value of the underlined digit?

125

100

400

Where would you put 10 on this number line?


0__________________15___________________25

0________10__________15_________________25

400

Write 100 in expanded form

100+0+0

400

Round to the nearest 100s

6,762

6,800

400
Start at 26 and count forward by 2's.  Will you say 35?


no

26,28,30,32,34,36

500

What is the value of the underlined digit?

345

4 tens or 40

500

How would you explain to a friend that 14 is less than 41?

14 has one ten and 4 ones

41 is greater because it has 4 tens and 1 one

41 has 3 more tens than 14 so it is a larger number.

500

Write 190 in expanded form.

100+90

500

Round to the nearest 1000s

4,822

5,000

500

Count backwards by 10's starting at 98.  Will you say 48?

Yes!

98,88,78,68,58,48,

M
e
n
u