Transcript Draw arrows on your place value mat to find the value of 0.04 x 10

“Spotlight on Math”
th
5 Grade
2014-2015
Strategies for Multiplying Decimals
• Using place value mat for multiplying
decimals with powers of 10.
• Using place value mat for multiplying
decimals and whole numbers.
• Using place value mat for multiplying
decimals and whole numbers (with
regrouping)
• Using area model to multiply decimals and
whole numbers.
• Explanation of tape models
A Typical Day in 5th Grade MATH Class…
• Daily Math- Math 4 Today
• Fluency Sprints-worksheets & oral
• Lesson of the Day- GC and incls. guided,
group and independent practice
• Workstations
• Interactive Notebooks
Draw arrows on your place value mat to find
the value of 0.04 x 10
0.04 x 10 = _____ tenths
Draw arrows on your place value mat to find the value of
0.004 x 10
0.004 x 10 = _____ hundredths
Why does the digit move one place to the left?
3 x 0.2
Show 3 groups of 2 tenths on your place value
chart. How many tenths do you have in all?
Write the solution as a
number sentence.
3 x 0.3
Show 3 groups of 3 tenths on your place value
chart. How many tenths do you have in all?
Write the solution as a number
sentence.
4 x 0.3
Show 4 groups of 3 tenths on your place value
chart. How many tenths do you have in all?
Write the solution as a number
sentence.
2 x 0.43
Let’s solve using the area model.
Write 0.43 in
expanded form
0.4
2
+
2 x 0.4 =
8 tenths
0.8
0.03
2 x 0.03 =
6 hundredths
+
0.06
= 0.86
Write the
products of
each part here
Find the sum
4 x 0.423
Let’s solve using the area model.
Write 0.423 in
expanded form
0.4
4
+
4 x 0.4 =
16 tenths
1.6
Write the
products of
each part
here
0.02
+
4 x 0.02 =
8 hundredths
+
0.08
+
0.003
4 x 0.003 =
12 thousandths
0.012 = 1.692
Find the sum
(this time you
have to regroup)
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