Addition Strategies
What is a doubles strategy to find the sum of 8 + 9?
OR
9 + 9 = 18 - 1 = 17
What is 15 - 7?
8
Maya picked 9 red apples and 6 green apples. How many apples did she pick in all?
9 + 6 = 15
Is the number 14 Even or Odd?
EVEN
What is the repeated addition equation for 3 groups of 4 hearts?
4 + 4 + 4 = 12
How do you make a 10 to solve 9 + 5?
10 + 4 = 14
How can you count back to solve 19 - 4?
18, 17, 16, 15
15
Leo has 16 books. He gives 7 of them to his friend. How many books does Leo have left?
16 - 7 = 9
Is the number 27 Even or Odd?
ODD
Lucas arranged his toy cars into 3 rows with 5 cars in each row. How many toy cars does he have in all?
5 + 5 + 5 = 15
Find the sum of 7 + 8 using the make-a-ten strategy.
10 + 5 = 15
Write the two subtraction facts in the fact family for the numbers 6, 7, and 13.
13 - 6 = 7
13 - 7 = 6
Sam needs 18 tickets for a prize. He has 9 tickets so far. How many more tickets does he need?
18 - 9 = 9
Noah has an even number of oranges split equally into 2 bowls. Which total could he have: 7, 10, or 13?
10 (5 in each bowl)
A bakery arranges cookies in 4 rows with 6 cookies in each row. How many cookies are there total?
6 + 6 + 6 + 6 = 24
4 + 4 + 7 = ?
15
Write the two subtraction facts in the fact family for the numbers 9, 8, and 17.
17 - 8 = 9
17 - 9 = 8
Chloe's trip has two parts. The first flight is 6 hours long, and the second flight is 5 hours long. How many hours total is her trip?
6 + 5 = 11
Question: Which equation shows a sum of two equal addends?
A) 6 + 5 = 11
B) 8 + 8 = 16
C) 9 + 7 = 16
B) 8 + 8 = 16
Write an addition equation to show 20 cupcakes in 4 equal rows.
5 + 5 + 5 + 5 = 20
8 + 2 + 6 = ?
16
Complete the make-a-ten subtraction strategy: 16 - 9 is the same as 10 - ?
10 - 3 = 7
A farmer has 6 cows, 4 sheep, and 8 chickens. How many animals are on the farm altogether?
6 + 4 + 8 = 18
Mrs. Davis has an odd number of students in her art class. The number is greater than 14 but less than 17. How many students are in her class?
15 students
Write a skip-counting sequence to find the total number of items arranged in 5 rows of 4.
4, 8, 12, 16, 20