Vocabulary
The answer to an addition problem is the ____?
Sum!
4,216 + 310 =
4,516
6,825 - 419 =
6,406
What is 457,890 rounded to the nearest ten thousands place?
460,000!
What is an equation? Give an example.
A math problem with arithmetic (+, -, X, /) and an equal sign (=). Example: 17 - 5 = 12
82,913 + 4,306 =
87,219
92,454 - 8,321 =
84,133
In the number 4,400 the number in the thousands place is ____ times greater than the number is the hundreds place.
Ten times greater!
What does it mean to estimate? Give an example.
To find an answer close to the exact answer.
125,936 + 283,415 =
409,351
520,675 - 458,892 =
61,783
Find the sum of these two numbers when rounding to the nearest tens place.
789 + 142 =
930!
What are addition properties?
The rules/guidelines to addition. For example, the commutative property means that the order of adding 2 numbers does not change the answer.
The book fair has come to school and the kids are excited to read! Mrs. Mayo's class bought $783 worth of books. Mr. Young's class bought $468 worth of books. What was the total amount of money spent?
$1,251
Mr. C is driving to North Carolina to visit his brother. He lives 2,184 miles away. So far Mr. C has driven 1,890 miles. How many more does he have to go?
294!
Find the difference of these two numbers when rounding to the nearest hundred.
2,861 and 1,220
1,700!
The associative property of addition means that you can add _______ numbers together in any order and still get the same solution?
Three!
The New England Revolutions soccer team sells tickers in huge chunks. One company bought one thousand and fifty six tickets. Another company bought seven hundred and twenty tickets. What is the total number of tickets sold?
1,776 tickets!
Mr. Branch grows pine trees. This year he grew six thousand three hundred and eighty trees. So far he has sold two thousand nine hundred and ninety pine trees. How many more pine trees can Mr. Branch sell?
3,390 pine trees left to sell!
A basketball game sold the following tickets over three days. Find the sum of the three days when rounded to the nearest thousands.
Day 1: six thousand one hundred
Day 2: six thousand eight hundred and ten
Day 3: five thousand four hundred and ninety five
18,000 tickets sold (eighteen thousand!)