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(easy hangman)
(difficult)

The ideas in this decimals lesson are taken from
Math Mammoth Decimals 1 book ($4.00 download). Only a few examples of each problem type are shown.

Place value again.
Free decimals lesson plan from HomeschoolMath.net

Look at the different place values in this number 2703.94.

2	7	0	3	. 9	4
thou- sands	hund- reds	tens	ones	tenths

What would be next place value after tenths?

____________________________________

2 × 1000

(thousands)

7× 100

(hundreds)

0 × 10

3 ×

9 ×

1

10

(tenth parts or tenths)

4 ×

[number line available in the ebook]

0 .	2	7
ones	tenths	hund- redths

From the place values, 0.27 is 2 tenths and 7 hundredths, or

and

100

But that is two separate fractions. How can 0.27 be written as a single fraction??

(Based on last lesson, you should already know!) Mark 0.27 on the number line, too.

0 .	5	1
ones	tenths	hund- redths

0.51 is 5 tenths and 1 hundredth = 0.5 + 0.01.
We can also write that using fractions:

0.51 =	5 10	+	1 100
=	50 100	+	1 100	=	51 100

Example problem types

1. Break down each number into ones, tenths and hundredths. Use fractions and decimals. Then read the number.

a.	0.78	=	0.7	+	0.08
	78 100	=	7 10	+	8 100

(seventy-eight hundredths)

0.19

1.25

1 +

0.2

0.05

4.65

2. Write as a decimal or as a fraction.

Decimal

Fraction

56

10

35

100

0.47

1.23

Decimal

Fraction

3

100

20

100

4

10

0.50

3. Name the place value that has been underlined in the number.

209.87

503.49

2,093.40

4. Write the following numbers as decimals.

100

10 +

100

6 +

100

6000 + 40 + 4 +

100

90 + 8 +

100

2000 + 2 +

100

5. Break down the following numbers. Then read the numbers in two different ways.

456.14 = 400 + 50 + 6 +

14

100

3203.00

608.06

0.55

6. Fill in the blanks.

a. 0.45 = 0.05 + ___	g. 101.52 = 1 + 100 + 0.02 + ___
b. 0.78 = 0.7 + ____	h. 430.21 = 400 + 0.01 + 0.2 + ____
c. 1.43 = 1 + ___ + 0.03	i. 14.05 = 10 + __ + 0.5

7. Mark these decimals on the number line (approximately): 0.2 0.42 0.58 0.13 1.19 0.81 0.75

[number line available in the ebook]

8. Study the pictures. Then write the following fractions as decimals.

	=
1 4	=	25 100	= 0.25

	=
1 5	=	20 100	= 0.20 = 0.2

e. 2

f. 3

k. 2

l. 3

9. Match each expression from the first column with one from the second.

[available in the ebook]

Next lesson: Thousandths

The ideas in this decimals lesson are taken from
Math Mammoth Decimals 1 book ($4.00 download). Only a few examples of each problem type are shown.

New! Times Tales is now on DVD!

The fast, FUN, and easy way to learn multiplication. Learn the upper times tales in two sittings using mnemonic stories.

Place value again. Free decimals lesson plan from HomeschoolMath.net

Example problem types

Place value again.
Free decimals lesson plan from HomeschoolMath.net