Bridges U3M2S1
Presentation
•
Mathematics
•
5th Grade
•
Practice Problem
•
Easy
Christine Kovacs
Used 4+ times
FREE Resource
29 Slides • 12 Questions
1
I can subtract decimals, read them, and tell that each digit represents 10 times the number on the right, and 1/10 of the number on its left.
2
Multiple Select
Choose a job where you would need to be able to subtract decimals.
A. bank teller
B. business owner
C. vet
D. sales person
3
Open Ended
Let's start with a problem string.
What's 43-4?
4
How did you solve it?
43 - 4 = 39
5
Open Ended
How about 52-49?
6
52 - 49 = 3
How did you solve it?
7
Multiple Choice
Remember when we did fractions? They were parts of a whole.
So, what are decimals?
A. When you have too many
B. When you turn the volume really loud
C. Parts of a whole
D. The change in your pocket
8
Open Ended
Let's throw in some decimals....
19.2 - 18.9 = ?
9
19.2 - 18.9 = 0.3
Is this how you solved it?
10
Open Ended
Let's try another one.
17.1 - 0.15 = ?
11
17.1 - 0.15 = 16.95
Is this how you solved it?
12
Open Ended
This one's tricky...
34.3 - 0.4 =
13
34.3 - 0.4 = 33.9
Is this how you solved it?
14
Open Ended
Last One!
31.3 - 30.8 = ?
15
Is this how you did it?
31.3 - 30.8 = 0.5
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Multiple Choice
When you add or subtract decimals with the standard algorithm, what do you always need to remember to do with the decimals?
A. Just erase them. They get in the way.
B. Put them wherever you want. It doesn't matter.
C. What's a decimal?
D. Line them up, up, up, and we solve them!
17
The "Line Them Up, Up, Up, and We Solve Them" was a classic video that we listened to last week.
But, here's another classic.
I hope it runs through your head all day!
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Let's look at page 81
in your Student Books!
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Remember when we took the Pre-Assessment?
This part of the test seemed to be quite a struggle.
23
Here's how the class did on that part of the pre-test.
What do you notice?
I guess we better pay attention! This is something we definitely need to learn!
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If you put both numbers in a place value chart, the 2 in 5.200 is in the tenths place, and the 2 in 5.002 is in the thousandths place. Tenths is bigger.
28
Let's keep going with our
Home Connections book,
pages 45 & 46.
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38
Poll
How do you feel about adding and subtracting decimals?
39
Poll
How do you feel about putting decimals into word form?
40
Poll
How do you feel about knowing that each digit represents 10 times the number on the right, and 1/10 of the number on its left?
41
I can subtract decimals, read them, and tell that each digit represents 10 times the number on the right, and 1/10 of the number on its left.
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