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Adding and Subtracting Decimals
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Subtract: 13.64 - 8.3
5.34
Describe the process of regrouping in a subtraction problem.
Take one away from the column on the left and add ten to the column on the right.
Add: 8.92 + 56 + 3.08
68 or 68.0 or 68.00
Do zeros need to be annexed to solve this problem? 9.92 + 56 + 3.08
Yes, annex zeros to 56.00 so all numbers end in the hundredths place.
Do zeros need to be annexed to solve this problem? 0.46 - 0.3
Yes, annex zeros to 0.30 so it ends in the hundredths place.
Do zeros need to be annexed to solve this problem? 13.45 - 1.64
No, both numbers end in the hundredths place.
Do zeros need to be annexed to solve this problem? 10 + 3.28
Yes, annex zeros to 10.00 so it goes to the hundredths place.
Subtract: 15 - 6.01
8.99
Add: 2.57 + 7.7
10.27
Subtract: 4.01 - 2.95
1.06
Add: 5.9 + 2.7
8.6
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