Even or Odd
Is 10 even or odd?
Even
Miss Keenan has 10 apples. She gets 5 more. How many apples does Miss Keenan have?
She has 5 apples.
10 + 5 = 15
Change the equation to make a ten to solve:
4 + 8 =
10 + 2 = 12
Write an addition sentence for this fact family:
2, 5, 7
2 + 5 = 7
5 + 2 = 7
Skip count by 2's until you get to 30.
2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30
Is 17 even or odd?
Odd
5 kids ride bikes. More kids come to ride their bikes. Now there are 13 kids. How many kids joined the 5 kids on their bike?
8 kids joined.
5 + 8 = 13
Can this problem be solved by making a ten:
5 + 2
No.
5 + 2 = 7
Write a subtraction sentence for this fact family:
2, 8, 10
10 - 8 = 2
10 - 2 = 8
Skip count by 5's until you get to 50.
5, 10, 15, 20, 25, 30, 35, 40, 45, 50
True or False: All double facts equal even numbers.
examples:
6 + 6
5 + 5
4 + 4
True
Miss Keenan has 12 pieces of candy. 9 are Reese's and the rest are M&Ms. How many M&Ms does Miss Keenan have?
12-9=3
Find 15 - 7 by making a 10.
15- ? = 10 (5, one part of 7)
10-2 (the other part of 7) = 8
15 - 7 = 8
13 - 6 = 7
Give another equation that matches this fact family.
Options:
13 - 7 = 6
6 + 7 = 13
7 + 6 = 13
How many sides does a square have?
4
True or False: All doubles + 1 facts equal odd numbers.
Examples:
5 + 6
6 + 7
4 + 5
True
Miss Keenan has 9 fish and 2 cats at home. She brings home 3 dogs. How many pets does Miss Keenan have now?
Miss Keenan has 14 pets.
Step One: 9 + 2 = 11
Step Two: 11 + 3 = 14
Can you solve 8 + 6 by making a ten?
What is 8 + 6 ?
Yes, 8 + 6 = 14
10 + 4 =14
Give two equations for this fact family:
4, 4, 8
4 + 4 = 8
8 - 4 = 4
How much is a dime worth?
10 cents
Miss Keenan and Miss H want to share a package of Skittles. There are 27 skittles. Will they each have the same amount of skittles? Why?
No, 27 is an odd number.
Miss Keenan picks 13 flowers. She throws 5 away. Then, she gives 3 to her mom. How many flowers does Miss Keenan have now?
Miss Keenan has 5 flowers.
Step 1: 13 - 5 = 8
Step 2: 8 - 3 = 5
Explain how to make a ten to help you solve the problem:
15 - 9
15 - ? = 10 (5, one part of 9)
10 - 4 = 6 (4 is the other part of 9)
15 - 9 = 6
Give four math equations for this fact family:
4, 7, 11
4 + 7 = 11
7 + 4 = 11
11 - 7 = 4
11 - 4 = 7
What is 20 + 20 = ?
20 + 20 = 40