Pair It Up!
Equal Groups
Doubles/Equal Addends
Mystery Challenge
Spiral Review
100
Pikachu has 8 Poké Balls. He puts them into pairs. Will every Poké Ball have a partner? Even or odd?
Yes
Even
100
Minnie has 6 cupcakes. She wants to put the same number on 2 plates. How many cupcakes go on each plate?
3 on each plate
100
Complete the equation: 8 = 4 + ___. Are the addends equal?
8 = 4 + 4
Yes the addends are equal
100
Is 7 even or odd?
Prove it!
7 is odd.
Can't be split into equal groups.
One would be left over if placed into pairs.
100
Using the number 73, what is the value of the digit in the tens place?
70
200
Mario collects 11 coins. If he puts the coins into pairs, how many pairs can he make? Will there be one left over?
5 Pairs
1 left over
11 is odd
200
Squirtle has 9 berries to share equally between 2 Pokémon. Can he make two equal groups? Is 9 even or odd?
No, Squirtle can't make 2 equal groups.
9 is odd.
200
Which equation proves that 12 is even? A. 6 + 6 = 12 or B. 7 + 5 = 12
6 + 6 = 12
200
Is 18 even or odd? Tell one way you could prove it.
18 is even.
Can be paired up with no left over objects.
Can be split into two equal groups.
9 + 9 = 18
200
Using the number 45. How many tens are in that number?
4 Tens
300
Pikachu has 15 berries. He tries to put all the berries into pairs. How many pairs can he make, and what happens to the last berry? What does that tell you about 15?
7 pairs
1 left over
15 is odd
300
Buzz and Woody each have 7 toy blocks. Together, they have two equal groups. How many blocks are there altogether? Is the total even or odd?
14 altogether
Even
300
Mario says 14 is even. Write an equation with two equal addends to prove Mario is correct.
7 + 7 = 14
300
Squidward says, “If a number can be split into two equal groups, it must be even.” Is his statement true? Use an example to explain.
Yes it is true.
Equal groups results in an even number.
300
Which of the following are ways to show 53?
30 + 5
5 tens and 3 ones
4 tens and 13 ones
3 tens and 5 ones
50 + 3
5 Tens and 3 Ones
4 Tens and 13 Ones
50 + 3
400
SpongeBob says 17 is even because it is a big number. Use pairing to prove whether SpongeBob is correct or incorrect.
17 is odd
400
Can these objects be separated into two equal groups? Prove your answer.
There are 11 objects.
11 Can't be separated into two equal groups.
It is odd
400
Patrick writes 9 = 4 + 5 and says, “That proves 9 is even!” What mistake did Patrick make?
Patrick's addends are not equal.
9 is odd
400
Which of these numbers are even?
11, 14, 8, 13
Show the even numbers using equal addends or doubles facts.
14 and 8
7 + 7 = 14
4 + 4 = 8
400
76 can be shown as 7 tens and 6 ones. Show a different way to show 76 as tens and ones.
6 tens and 16 ones
500
Buzz has some space crystals. He can put them into 9 pairs with none left over. How many crystals does Buzz have? Is the number even or odd?
18
Even
500
Elsa has a number of snowflakes between 15 and 20. She can split them into two equal groups of 9. How many snowflakes does she have? Is the number even or odd?
18
Even
500
SpongeBob says, “18 is odd because 9 is an odd number.” Patrick says, “18 is even because 9 + 9 = 18.”
Who is correct? Use the equation to explain why.
Patrick is correct.
18 is even because 9 + 9 = 18. The two addends are equal, so 18 is even.
500
Ariel has an even number of shells. She has more than 10 and less than 15. How many could she have?
Tell how you know.
12 or 14
500
Draw 3 tens and 10 ones.
How many tens are there in all?
4 tens.