Vocabulary
The answer to an addition equation is the
Sum
Round 156 to the nearest 100.
200
852
Henry took his collection of baseball cards outside to recess. He has 463 cards in his collection. While outside he lost 178 of his baseball cards. How many cards are in his collection now?
285 baseball cards
Jay read 3 books every month for 5 months. Then he read 2 more books after that. How many books did Jay read altogether?
17 books
The answer to a subtraction equation is the
difference
Round 31 to the nearest 10.
30
Subtract 453 - 126
327
Jane made 467 dollars babysitting last week. Then she received 133 dollars for her birthday. How much money does Jane have?
600 dollars
Abby had 120 bows. She gave 79 bows away. Then her mom bought her 48 more bows. How many bows does Abby have?
89 bows
To estimate a number means to
Round
Round 78 to the nearest 100.
100
Subtract 700-362
338
Kate needs 350 dollars to go on her class trip. She has 243 dollars in her piggy bank already. How much more money does Kate need to go on her class trip?
107 dollars
Brady made 4 batches of cookies. Each batch made 6 cookies. Brady ate 4 of the cookies and took the rest to school for his teachers. How many cookies did Brady take to school for his teachers?
20 cookies
What do you call the two numbers that are being added together? (Ex. 56+23)
addends
Round to the nearest 10. 768
770
876+983=
1859
Dave painted 298 tiles red. Sam painted 673 tiles red. How many more tiles did Sam paint compared to Dave?
375 tiles
Carson has 10 bags of gummy bears. There are 20 gummy bears in each bag. Carson ate 37 gummy bears at lunch. How many gummy bears does Carson have left?
163 gummy bears
When you have to barrow or carry over a number when adding and subtracting.
To rename a number by exchanging an amount of equal value.
regroup
Round to the nearest 100. 982
1,000
The sum is 521. One addend has 3 digits. One digit of its digits is a 4. The other addend has 2 digits. Write an equation that could model this problem.
Answers can vary... See teacher! :)
A 3rd grade class raised 987 dollars during a fundraiser. A 4th grade class raised 564 dollars during the same fundraiser. How much money did the two grade levels earn altogether?
1551 dollars
Fred wants to share his markers between him and four of his friends. He has 19 sharpie markers and 16 expo markers. How many markers will each friend get?
7 markers