Addition Strategies

Ten Frames

100

Use your ten frame to show the following 4+8=

12

200

Use your ten frame to show how to make 10

answers may vary

300

Use your ten frame to solve the following: 

8+2+3=

13

400

Use your ten frame to solve: 

Miss Slater had 3 dogs. Mrs. Donham gave her 6 more. How many dogs does she have in all?

9

500

Use your ten frame to solve: 

Mrs. Cummins has 12 books in her library. She bought 4 more. How many books does she have in her library now?

16 books

Doubles

100

complete the following: 

2+2=

4+4=

6+6=

10+10=

2+2=4

4+4=8

6+6=12

10+10=20

200

Mrs. Zvolanek has 9 post it notes. Ms. Kratzer gave her 9 more. How many does she have in all?

18

300

Sam has 10 cookies. Leo gives him 10 more cookies. How many does he have now?

20

400

Jack has 8 baseball cards. Max also has 8 baseball cards. How many cards do they have all together?

16

500

Answer these questions: 

7+7=

9+9=

5+5=

3+3=

7+7=14

9+9=18

5+5=10

3+3=6

Doubles +1

100

Use doubles +1 to answer: 

5+6=

if 5+5=10 

then 5+6=11

200

Use doubles +1 to answer 

4+3=

if 3+3=6

then 3+4=7

300

Use doubles +1 to answer: 

RJ has 9 stuffed animals. His mom gave him 8 more. How many does he have now?

if 8+8=16 

Then 8+9=17

400

Use doubles +1 to answer: 

Vera has 4 pencils. She found 3 more. How many pencils does she have now?

If 3+3=6 

then 3+4=7

500

Explain how to use the doubles +1 addition strategy and give an example. 

Take the smaller number, double it, then add one more! 

Examples will vary. 

Doubles -1

100

Use doubles -1 to solve: 

6+7=

if 7+7=14 

then 7+6=13

200

Use doubles -1 to solve: 

5+6=

if 6+6=12 

Then 5+6=11

300

Use doubles -1 to solve

Mrs. Grigsby has 8 crayons in her box. One of her students gave her 7 more. How many crayons does she have now?

if 8+8=16 

Then 8+7=15

400

Use doubles -1 to answer. 

Knox has 4 bouncy balls. He picked up 3 more from the ground. How many does he have in all?

If 4+4=8 

then 4+3=7

500

Explain how to use doubles -1 strategy and give an example! 

Take the greater number, double it, and subtract 1! 

Examples will vary 

Could be anything!

100

Use your ten frame to show how to make 12. 

Answers may vary 

200

Use any strategy to solve: (use your ten frames, unifix cubes, doubles strategies, or draw a picture!)

Miss Slater has 8 unicorn stickers. She bought 7 more. How many does she have now?

8+7=15

300

Use any strategy to solve: (use your ten frame, doubles strategies, unifix cubes, or draw a picture!) 

Amara read 6 poems on Monday. She read 6 more on Tuesday, and one on Wednesday. How many poems did she read?

6+6+1=13

400

Find the doubles or make ten to solve the problem:

7+2+3=

if 7+3=10 

10+2=12 

Then 7+2+3=12

500

Explain why it is important to know more than one addition strategy?

answers may vary (so you can check yourself, so you can prove/justify your answers, so you can have a toolbox of strategies to help you if you get stuck)