DECIMAL PRACTICE:
MODULE 6-TOPIC D-LESSON 12
I can apply understanding of
fraction equivalence to add
tenths and hundredths.
FLUENCY (COMPARE DECIMALS)
1. Use the symbols <, >, or = to compare.
a. 3.20 ______ 3.2
b. 7.8 _____ 7.85
c. 5.72 _____ 5.27
d. 2.9 ______ 2.89
e. 6.24 _____ 6.42
f. 10.8 ______ 10.08
Fluency (Order Decimal Numbers)
Write 0.3,
1
,
10
and 0.44. Arrange the numbers in order from least to greatest.
13 43 1
,
,
, 0.54, 0.1, 0.55, 0.66
10 100 100
APPLICATION PROBLEM
7
1
On Monday, 1 inches of rain fell. On Tuesday, it rained inch. What was the total
8
4
rainfall for the two days?
CONCEPT DEVELOPMENT
Add tenths and hundredths written in unit form using
pictorial models.
We have to make like units.  We have to rename 3 tenths as
30 hundredths.  We can decompose tenths to hundredths.
 We can convert tenths to hundredths:
3
30
30
4
34
=
.
Then,
we
can
add,
+
=
10 100
100 100 100
CONCEPT DEVELOPMENT
Add tenths and hundredths by converting using multiplication.
Express the sum as a decimal.
3
13
𝑥
10 100
Are we ready to add?
Multiply both the numerator and denominator of
3 tenths by 10 so that we have like units, hundredths.
3
3 × 10
30
 Convert 3 tenths to hundredths. 10 = 10 × 10 = 100 .
30
13
43
+
=
100 100 100
= .43
PROBLEM SET
PROBLEM SET
PROBLEM SET
EXIT TICKET/NOTE CARD OUT THE DOOR
HOMEWORK DATE:_______