Adding
517 + 412 =
929
844 - 642 =
202
940 - 355 =
585
A school sold 2,468 books on Monday and 3,175 books on Tuesday at its annual book fair.
How many books did the school sell in all?
5,643 books
Which operation uses the words "find the difference?"
Subtraction
2,241 + 6,483 =
8,724
7,785 - 1,434 =
6,351
8,007 - 3,569 =
4,438
A soccer stadium has 8,245 seats. For a championship game, 3,678 seats were still empty.
How many seats were filled with fans?
4,567 seats filled
Which operation is when you find the "sum?"
Addition
37,178 + 3,378 =
40,556
26,872 - 2,421 =
24,451
52,006 - 13,055 =
38,951
An ice cream shop made 2,450 chocolate ice cream cones and 1,875 vanilla ice cream cones for a summer festival. During the festival, the shop sold 2,968 cones.
How many ice cream cones were left after the festival?
Step 1: 2,450 + 1,875 = 4,325
Step 2: 4,325 − 2,968 = 1,357 ice cream cones left
What is carrying or borrowing a number from one column to another?
Regrouping
436,295 + 13,782 =
450,077
686,547 - 53,126 =
633,421
250,900 - 9,936 =
240,964
A family drove 1,485 miles on the first part of their road trip and 1,276 miles on the second part. Their total trip was 4,000 miles.
How many more miles does the family have left to drive?
Step 1: 1,485 + 1,276 = 2,761 miles
Step 2: 4,000 − 2,761 = 1,239 miles left to drive
What is estimating a number to the nearest requested place value digit?
Rounding
587,314 + 241,593 =
828,907
952,875 - 821,361 =
131,514
70,000 - 2,367 =
67,633
A farmer harvested 2,485 apples from one orchard and 1,769 apples from a second orchard. The next day, the farmer harvested another 3,258 apples from a third orchard.
How many apples did the farmer harvest in all?
Step 1: 2,485 + 1,769 = 4,254
Step 2: 4,254 + 3,258 = 7,512 apples
What is a number with 2 or more digits?
multi-digit