Vocabulary
What are the main 3 ways of how to add and subtract?
Base ten, Staking, and number line
27 rounded to the nearest 10.
What is 30?
5 + 5 =
10
10 - 5 =?
What is 5
If Santa has 2 cookies and there are 2 elves and they each have 1 cookie how many cookies does santa have total?
4 cookies
The answer in an addition problem
What is the sum?
what is 9 rounded to the nearest 10?
10
100 + 100 =
200
7 - 3 =?
4
if Santa gets you 3 presents and your parents get you 15 presents how many presents do you have total?
18 presents
what are the 3 main ways to multiply?
loops and groups, pictures, and ratio tables.
34 rounded to the nearest ten.
30
10 + 10 =
What is 20
200 - 100 = _
100
If you had 1 elf at your house and your neighbor had 3 elves how many elves is their total?
4 elves total
What is it called when 2 numbers equal the same and can be swapped?
What is Commutative property.
46 rounded to the nearest ten?
50
3 + 3 =
6
22 - 2 =
20
If you invite 10 people to your party and only 8 came how many more people need to come to your party?
2 more people.
What does commutative property mean?
when 2 numbers can be swapped around and still equal the same
50 rounded to the nearest ten?
50
10 + 5 =
15
9 - 1 =?
8
If there are 20 kids in your class and there are 2 new kids how many kids will now be in your class?