math manipulative exercise everyone make sure you grab 5 square blocks, 10 strips, and 10 small...
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![Page 1: MATH MANIPULATIVE EXERCISE Everyone make sure you grab 5 square blocks, 10 strips, and 10 small blocks! You will create the following numbers in your table](https://reader033.vdocuments.net/reader033/viewer/2022051417/5697bfd31a28abf838cac197/html5/thumbnails/1.jpg)
MATH MANIPULATIVE EXERCISE
• Everyone make sure you grab 5 square blocks, 10 strips, and 10 small blocks!
• You will create the following numbers in your table groups with the math manipulative blocks.
• You will be working as a group, a team, a close-knit circle – you are not done until everyone in your group understands why you have used the blocks you’ve used!
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17.92• Make sure you are using the proper blocks
to represent each part of the number!
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21.09• Is it possible to create this number?• You may have to think about how are you
going to use your tenths blocks!
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2.98• Make sure you are using the proper blocks
to represent each part of the number!
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0.01• Make sure you are using the proper blocks
to represent each part of the number!
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0.396• For this problem: treat the large square
blocks as tenths and go from there!• Make sure you are using the proper blocks
to represent each part of the number!
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0.056• For this problem: treat the large square
blocks as tenths and go from there!• Make sure you are using the proper blocks
to represent each part of the number!
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0.307• For this problem: treat the large square
blocks as tenths and go from there!• Make sure you are using the proper blocks
to represent each part of the number!
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ADDING AND SUBTRACTING DECIMALS
• Adding and subtracting decimals works the exact same as regular addition and subtraction – you just need to make sure you are lining up the tenths, hundredth, thousandths, etc.
• If you are adding together hundredths and it comes to over ten, you carry the 1 up to the tenths place
• If you were subtracting 9 thousandths away from 4 thousandths, you’d have to break down the hundredths and carry over the 1 from there.
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LET’S PRACTICE!• With your blocks – create the number 1.15
• Now with the blocks – add 0.5 to the original set
• How many do you have now?
• If you count them all up, you’ll see that you should have one large block, six tenths blocks, and five hundredths blocks to create the number 1.65
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ADDITIONWith your blocks please add the following numbers:
• 2.34 + 1.1
• 0.9 + 3.12
• 4.01 + 0.06
• 1.1 + 0.89
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SUBTRACTIONWith your blocks could you please subtract the
following numbers
• 2.34 - 1.1
• 3.12 - 0.9
• 4.11 - 0.06
• 1.19 - 0.89
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PULL OUT A PIECE OF PAPER!
Please write Decimal Assessment as the title as well as write your name
and the date!
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DECIMAL ASSESSMENT
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GREATER, LESSER, OR EQUAL?
1. 19.09 19.092
2. 14.693 14.396
3. 8.010 8.01
4. 3.5879 5.001
5. 16.9 16.899
6. 1.01 + 1.3
7. 1.9 + 0.1
8. 4.78 – 1.1
9. 4.05 + 1.95
10. 2.99 + .33
ADDITION/SUBTRACTION
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GREATER, LESSER, OR EQUAL?
1. 19.09 < 19.092
2. 14.693 > 14.396
3. 8.010 = 8.01
4. 3.5879 < 5.001
5. 16.9 > 16.899
6. 1.01 + 1.3 = 2.31
7. 1.9 + 0.1 = 2.0
8. 4.78 – 1.1 = 3.68
9. 4.05 + 1.95 = 6.00
10. 2.99 + .33 = 3.32
ADDITION/SUBTRACTION
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ROUNDING DECIMALS• Now clearly mathematicians ALWAYS do everything the
easy way and rounding is no exception!
• When you look at a number with a decimal and you are checking to see if it should be rounded up or down, there are a few ways you can look at it!
1. If the number ends in 1, 2, 3, or 4 you will round DOWN!
2. If the number ends in 5, 6, 7, 8, or 9 you will round UP!
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ROUNDING DECIMALS• We can also look at this using the manipulatives…
• Create the number 1.3 with your blocks!
• Now if we wanted to round it to the nearest whole number (left side of the decimal point!) we have to ask…
• Is it easier to take away those 3 tenths blocks or is it easier to find, pick out, and place 7 more blocks?
• Unless you’re super strong like Mr. Bristow, taking the 3 blocks away is the easiest thing to do!
• We ROUND DOWN!
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PULL OUT A PIECE OF PAPER!
Please write Rounding Decimals Practice as the title as well as write
your name and the date!
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ROUNDING DECIMALS PRACTICE• Write these numbers and
practice rounding them up or down and write the answers down
• 1.4
• 2.5
• 1.6
• 0.7
• 0.1
• 1.4
• Do you think you can round these numbers to the nearest tenth? Write the answers down
• 1.44
• 2.58
• 1.61
• 0.75
• 0.16
• 1.45
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TEXTBOOKS? WHAT ARE THOSE?
• It is time to wail and gnash your teeth Oh Students of ASIA Sumas as we finally have to crack open our
textbooks and work!
• Homework is pg 129-130 #1, 2, 3 a,c,e,g; 4, 6, and 9
• This will be checked Friday, December 4 th!
• If you get stuck, move to the next question and go back to finish it later!