Adding and Subtracting Large Numbers.

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Adding and Subtracting Large Numbers.

• By Scott Mangum

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Mississippi benchmark

• 5a Adding and subtracting nine-digit whole
  numbers with and without regrouping.

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Vocabulary

• Addends Are numbers being added.
• Sum Is the answer to an addition problem.
• Minuend Is the number being subtracted from.
  (top number)
• Subtrahend Is the number being subtracted.
  (bottom number)
• Difference Is the answer to an subtraction
  problem.
• Regrouping Is when you borrow a number from a
  higher place value or carry a number to a higher
  place value.

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Subtraction with regrouping
11
1
11
6
? Regrouping/Borrowing
721 - 158
/
/
/
3
6
5
5
Addition with regrouping
? Regrouping/Carrying
739 274
3
1
1
1
10
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Practice

• The population of Jackson, MS is 2,844,658. The
  population of Birmingham, AL is 4,447,100. How
  many more people live in Birmingham than Jackson?

- 2,844,658
4,447,100
1,602,442
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Practice

• The American Red Cross receives donations for
  different disasters. The Red Cross received
  289,000,000 for the September 11th attack,
  173,000,000 for the Indian Ocean Tsunami, and
  537,000,000 for the relief efforts for Hurricane
  Katrina. What is the difference between the
  tsunami and Katrina? How much money did the Red
  Cross collect in all?

537,000,000
-173,000,000
364,000,000
537,000,000
289,000,000
173,000,000
999,000,000
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Practice
3,010,738

• There were 2,725,716 houses built in 2002. In
  2003 consumers built 3,010,738 more homes. How
  many houses were built in 2002 and 2003? How
  many more houses were built in 2003 than 2002?

2,725,716
5,736,454
3,010,738
-2,725,716
285,022