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 Addition and Subtraction (2) 50 Flashcards |
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What is the process of breaking a decimal number into its individual place value components called? |
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Decomposing decimals.  |
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Fill in the blank: To add decimals accurately, you must align the ___ points. |
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Decimal  |
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True or False: The decimal number 6.075 can be decomposed into 6, 0.07, and 0.005. |
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True  |
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Riddle: I can be combined or broken apart, in measurements I play a part. What am I? |
Card: 7 / 50 |
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Decimals  |
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Fill in the blank: When regrouping decimals, 4.49 can be rearranged to ___ + 0.4 + 0.09. |
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4  |
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What is the importance of using trailing zeros when adding decimals? |
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Trailing zeros ensure that the decimal places are consistent, allowing for accurate addition.  |
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Estimate the sum of 4.49 and 3.09. |
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Approximately 7.58.  |
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True or False: The Olympic qualifying time of 10.05 seconds is shorter than Usain Bolt's record time of 9.58 seconds. |
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False: 10.05 seconds is longer than 9.58 seconds.  |
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What are the steps involved in composing a decimal number? |
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To compose a decimal, you combine its place values.  |
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Fill in the blank: The decimal number 37.844 can be decomposed into ___ + 7 + 0.8 + 0.04 + 0.004. |
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30  |
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What is the first step to add decimal numbers using the column method? |
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Align the decimal points of the numbers to be added.  |
Card: 22 / 50 |
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Fill in the blank: To perform subtraction of decimals, you should ___ the decimal points. |
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Align  |
Card: 24 / 50 |
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True or False: When adding decimals, it is necessary to use trailing zeros for consistency in decimal places. |
Card: 25 / 50 |
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True  |
Card: 26 / 50 |
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Riddle: I can be used to find the total after spending some money. What am I? |
Card: 27 / 50 |
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Addition of decimals  |
Card: 28 / 50 |
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Using the regrouping method, how would you decompose 10.00 - 7.58? |
Card: 29 / 50 |
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2.42Decomposing Numbers in Subtraction
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Card: 30 / 50 |
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What is the result of 65.98 + 32.75? |
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The result is 98.73.  |
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Fill in the blank: The method used to subtract decimals where you align decimal points and subtract directly is known as the ___ method. |
Card: 33 / 50 |
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Column  |
Card: 34 / 50 |
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What is the significance of using trailing zeros when adding or subtracting decimals? |
Card: 35 / 50 |
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Trailing ZerosThe Significance of Trailing Zeros in Decimal Calculations
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Card: 36 / 50 |
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Riddle: I am the operation that gives you the difference when you take away some value from another. What am I? |
Card: 37 / 50 |
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Subtraction of decimals  |
Card: 38 / 50 |
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If you have 4.49 and 3.09, what is the sum using both the regrouping and column methods? |
Card: 39 / 50 |
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The sum is 7.58 using both methods.  |
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The result of subtracting 7.58 from 10.00 is ___ |
Card: 41 / 50 |
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2.42  |
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When estimating the difference between 4.49 and 3.09, rounding both numbers gives an approximate difference of ___ |
Card: 43 / 50 |
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3  |
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True or False: The process of aligning decimal points is not necessary when performing subtraction. |
Card: 45 / 50 |
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False - Aligning decimal points is essential for accurate subtraction.  |
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Fill in the blank: The method of regrouping involves breaking down numbers to facilitate ___ in subtraction. |
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Easier calculation  |
Card: 48 / 50 |
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What is the significance of using trailing zeros in decimal subtraction? |
Card: 49 / 50 |
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Trailing ZerosThe Significance of Trailing Zeros in Decimal Subtraction
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Card: 50 / 50 |
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Completed! Keep practicing to master all of them. |
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