Addition and Subtraction Strategies

Which fact does NOT have the same sum as 7+8? b.5+10 c.9+9 d.6+9

In Ms. Smith’s class there are 7 girls and 6 boys In Ms. Smith’s class there are 7 girls and 6 boys. How many students are in her class?

Chris has 5 stickers and his mom gives him 5 more Chris has 5 stickers and his mom gives him 5 more. How many stickers does he have now? 15 12 20 10

Sam ate 18 French fries. Sally ate 5 fewer than Sam Sam ate 18 French fries. Sally ate 5 fewer than Sam. How many French fries did Sally eat? 13 10 23 5

Find the sum: 9 3 +1

Aaron had a bag of 30 chips. He ate 12 of them Aaron had a bag of 30 chips. He ate 12 of them. How can he find the difference? 30-10=20 and 20-2=18 b. 30-20=10 and 10-5= 5

A rhombus has 4 corners. If you count the corners of these rhombuses, what kind of number will you get? Even or odd

Even Odd Sort these numbers as even or odd. 66, 21, 127, 98, 356, 40, 452 Even Odd

Travis had some chocolate chip cookies Travis had some chocolate chip cookies. He shared 7 with his friend Karen. He still has 18 left. How many did he start with? ? 7 18

Francis invited 21 friends to her sleep over Francis invited 21 friends to her sleep over. 9 friends could not make it. How many friends went to her sleep over? 15 12 11 30

Julia bought some Shopkin’s and wrote this number sentence: 5+6= What could be her answer? Julia bought 4 Shopkin’s Julia bought 11 Shopkin’s

Matt has some footballs. He wrote this number sentence about them: 30 - = 20 What could’ve happened to his footballs? Matt kicked 10 footballs out of the field. Matt had 10 footballs given to him.

Mr. Field had 36 erasers. He gave 6 to his student Joe Mr. Field had 36 erasers. He gave 6 to his student Joe. Then he gave 10 to Ms. Jones. How many erasers does Mr. Field have left? 52 12 36 20

Laura has a box of 6 rocks. Her sister gives her 12 more Laura has a box of 6 rocks. Her sister gives her 12 more. Her uncle gives her 5 more. How many rocks does Laura have now? 20 25 23 33

Which number is between 509 and 603? 505 600 99 1,000

Which point is located at 780? B C

Betsy made 16 cupcakes. Her friends ate 8 of them Betsy made 16 cupcakes. Her friends ate 8 of them. How many cupcakes are left? 16 8 ?

Gabriel made a chart about his toy cars. Gabriel’s Cars How many more red than black cars does Gabriel have? ________________________________________________________ How many blue and black cars does Gabriel have? Color of Car Number of cars red 18 blue 6 black 9

Dan’s backpack is 18 inches long. Paul’s backpack is 4 inches shorter Dan’s backpack is 18 inches long. Paul’s backpack is 4 inches shorter. How long is Paul’s backpack? 20 22 14 18

Kathy has a container of 22 markers. She lost some. Now she has 15 left. How many markers did Kathy lose? 20 7 37 8