LET'S UNDERSTAND! 📚

A. CARDINAL NUMBERS

• The numbers which give us the exact quantity of an object are called cardinal numbers. In other words, cardinal numbers answer “How many?”

Direction: Let's study numbers 1-20 and their spelling.

1	one	11	eleven
2	two	12	twelve
3	three	13	thirteen
4	four	14	fourteen
5	five	15	fifteen
6	six	16	sixteen
7	seven	17	seventeen
8	eight	18	eighteen
9	nine	19	nineteen
10	ten	20	twenty

By 10's
10	ten
20	twenty
30	thirty
40	forty
50	fifty
60	sixty
70	seventy
80	eighty
90	ninety
100	one hundred

B. THE ORDINAL NUMBERS

• The numbers which give us the exact position of an object are called ordinal numbers. Ordinal numbers tell the position of an object rather than their quantity.

Direction: Let's study the ordinal numbers and their spelling.

1st	first	11th	eleventh
2nd	second	12th	twelfth
3rd	third	13th	thirteenth
4th	fourth	14th	fourteenth
5th	fifth	15th	fifteenth
6th	sixth	16th	sixteenth
7th	seventh	17th	seventeenth
8th	eighth	18th	eighteenth
9th	ninth	19th	nineteenth
10th	tenth	20th	twentieth

By 10's
10th	tenth
20th	twentieth
30th	thirtieth
40th	fortieth
50th	fiftieth
60th	sixtieth
70th	seventieth
80th	eightieth
90th	ninetieth
100th	one hundredth

C. How often do you do something?

Direction: Let's mark the calendar together using the expressions below.

Here is a chart showing the commonly used Adverbs of Frequency

100%	always
80%	usually
70%	often
50%	sometimes
20%	rarely
0%	never

D. READING LARGE NUMBERS

• Numbers are separated into groups: ones, tens, hundreds, thousands, millions, and so on.

Direction: Let's practice reading large numbers. Here's a chart.

LET'S PRACTICE!

PART I

Direction: Choose the correct expressions from the box below that best describes each photo.

thirteen	fifty	thirty
seventy-eight	three hundred eighty	seven

1.	2.
3.	4.
5.	6.

PART II

Direction: Listen carefully as your mentor reads the statements twice then choose the correct answer from the choices below.

1. 🔊

   a. seven thousand one hundred four

   b. one thousand four hundred seven

   c. four thousand one hundred seven

2. 🔊

   a. sixteen thousand thirty nine

   b. sixteen thousand three hundred fifty nine

   c. sixty thousand three hundred forty nine

3. 🔊

   a. eight thousand seven hundred seventy seven

   b. eighty thousand seven hundred seventy

   c. eight thousand seventy seven

PART III

Direction: Read the sentences and answer the questions that follow.

1. Alex looks at his watch every hour.

   How often does Alex look at his watch?

   ➡

2. Mom goes to the market weekly.

   How often does Mom go to the supermarket?

   ➡