Three-Digit Numbers

Ten ones make a ten:			Ten ten-pillars make ONE HUNDRED:
	=			=
10 ones	=	10	10 tens	=	100

Write hundreds, tens, and ones in their own columns:

hund- reds	tens	ones
3	2	7

three hundred twenty-seven

1. Count the ones, tens, and hundreds, and fill in the missing parts.

a. one hundred
one

hundreds		tens	ones
	1	0	1

b. one hundred
six

hundreds		tens	ones

c. one hundred
eleven

hundreds		tens	ones
	1	1	1

d. one hundred
thirteen

hundreds		tens	ones

e. one hundred
twenty

hundreds		tens	ones

f. one hundred
twenty-five

hundreds		tens	ones

g. one hundred
fifty

hundreds		tens	ones

h. one hundred
sixty-two

hundreds		tens	ones

2. Count the ones, tens, and hundreds, and fill in the missing parts.

a. two hundred

four

hundreds		tens	ones
	2	0	4

b. two hundred

thirteen

hundreds		tens	ones

c. ___________________

___________________

hundreds		tens	ones

d. __________________

__________________

H	T	O

e. __________________

__________________

H	T	O

f. __________________

__________________

H	T	O

g. ________________________________

H	T	O

h. Ten hundreds = One thousand

Th	H	T	O
1	0	0	0

3. Write a sum of the hundreds, tens, and ones shown in the picture.
Also write the number.

_____________ + ________ + _____

H	T	O

_____________ + ________ + _____

H	T	O

_____________ + ________ + _____

H	T	O

_____________ + ________ + _____

H	T	O

Notice: There are NO ones.
Write a zero for ones in the sum.

_____________ + ________ + 0

H	T	O

Notice: There are NO tens.
Write a zero for tens in the sum.

_____________ + 0 + ________

H	T	O

4. Match the numbers, number names, and the sums to the correct pictures.

118

505

818

550

508

805

eight hundred five

five hundred fifty

one hundred eighteen

500 + 8

500 + 5

800 + 10 + 8

5. The dots are ones, the pillars are tens. Group together 10 ten-pillars to make a hundred.

235

____________

How many tens are in a thousand?

Math Lessons menu

Place Value Grade 1 Using a 100-bead abacus in elementary math Teaching tens and ones Practicing with two-digit numbers Counting in groups of ten Skip-counting practice (0-100) Comparing 2-digit numbers Cents and dimes Grade 2 Three-digit numbers Comparing 3-digit numbers Grade 3 Place value with thousands Comparing 4-digit numbers Rounding & estimating Rounding to the nearest 100 Grade 4 Place value - big numbers	Add & subtract lessons Grade 1 Missing addend concept (0-10) Addition facts when the sum is 6 Addition & subtraction connection Grade 2 Fact families & basic addition/subtraction facts Sums that go over over the next ten Add/subtract whole tens (0-100) Add a 2-digit number and a single-digit number mentally Add 2-digit numbers mentally Regrouping in addition Regrouping twice in addition Regrouping or borrowing in subtraction Grade 3 Mental subtraction strategies Rounding & estimating	Multiplication Grade 3 Multiplication concept as repeated addition Multiplication on number line Commutative Multiply by zero Word problems Order of operations Structured drill for multiplication tables Drilling tables of 2, 3, 5, or 10 Drilling tables of 4, 11, 9 Grade 4 Multiplying by whole tens & hundreds Distributive property Partial products - the easy way Partial products - video lesson Multiplication algorithm Multiplication Algorithm — Two-Digit Multiplier Scales problems - video lesson Estimation when multiplying
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