Count Ons and Easy
Which numbers are great for count on?
1, 2, and 3
What is the addend doubled which would give you the sum of 10?
5
What is the sum of 7 + 6?
13
Name the missing addend:
___ + 6 = 10
4
Name the number you would make 10 with for this problem:
8 + 4 = 12
2
What is the sum of 6 and 3?
9
What is the double fact which would give you the sum or 18?
9
Do you double the lower number and add one or the higher number and add one?
You double the lower number and add one.
What is 8s partner to 10?
2
7 + 6 = 13
3 and 3
What addend would you add to 9 to get 12?
3
Is there an addend which would double to make 16? What is it?
Give the double equation you would use to solve this equation:
9 + 8 =
8 + 8 = 16
Name 3 partners to 10.
Any of these:
9, 1 or 8, 2 or 7, 3 or 6, 4 or 5, 5
Which addend would you break apart to make 10?
5 + 9 = 14
What would you break it into?
You would break apart the 5 into a 1 and a 4.
What is 3+ 15?
18
Is there an addend that you can double to make 21? If so, what is it?
No, there is not an addend you can double to make a sum of 21.
Explain how you would solve 4 + 5 using the doubles plus one strategy.
Double the lower number (4 + 4) and then add 1.
Name the partner to 100 for the following problem:
4 tens + ____ tens = 10 tens
6
How could you break apart this equation to make 10?
8 + 6 = 14
You would break up the 6 into 4 and 2 so you could use the 2 with the 8 to make 10.
What is 75 + 3?
78
What addend do you double to make a sum of 210?
105
Solve this using the doubles + 1 strategy:
21 + 22 =
43
30 + ____ = 100
70
How would you break this up to make 100?
90 + 40 = 100
You would break up the 40 into 10 + 30 to add the 10 to 90 to make 100.