Even or Odd
Is 6 even or odd?
Even
Write an equation for 6 using equal addends.
3 + 3 = 6
What are equal groups?
Groups that have the same number of objects in each.
What is an array?
A set of objects in equal rows and columns.
There are 2 rows of 5 chairs. How many chairs?
10
How do you know if a number is even?
It can be divided into 2 equal groups or pairs with none left over.
Write an equation for 10 using equal addends.
5 + 5 = 10
Show 3 groups of 4 using counters or drawing. How many in total?
12
Draw a 2×4 array. How many objects total?
8
A baker makes 3 trays with 6 cupcakes each. How many cupcakes?
18
Which number is odd: 10, 11, or 12?
11
Can 9 be written as a sum of two equal addends?
No, it’s odd.
If there are 5 groups of 2 apples, how many apples in all?
10
f an array has 3 rows and 5 columns, what is the total?
15
You have 4 boxes with 4 toys each. How many toys in all?
16
Say all even numbers: 7, 8, 12, 15, 18
8, 12, 18
Show 12 as a sum of two equal addends.
6 + 6 = 12
If there are 4 baskets with 3 oranges each, what is the total?
12
How can you write an equation for 2 rows of 6?
6 + 6 = 12
There are 5 tables with 8 pencils each. How many pencils?
40
If you count by 2s, which numbers will you say: 1–10 or 2–10?
2, 4, 6, 8, 10
Write two different equations that show even numbers.
Examples: 4 + 4 = 8, 2 + 2 = 4
How can we write an addition sentence for 3 groups of 5?
5 + 5 + 5 = 15
True or False: 4 rows of 3 has the same total as 3 rows of 4.
True (12 total)
A farmer has 3 fields with 9 apple trees each. How many trees?
27