Rounding
Two-Digit Addition
3-Digit Addition
Subtraction
Mystery
100

What ten does 66 round to? 

70
100

What is 37+51? 

88
100

What is 250 + 350? 

600

100

What is 45-22?

23

100

What is Mr. Archer's favorite thing to get in the morning before he goes to work?

Hugs from his family!

200

How do you round 366 to the nearest hundred? 

400
200

Lilja and Amelia were collecting pictures of waterfalls. Lilja collected 54 pictures and Amelia collected 42. What is the total number of pictures they found?

96

200

Esme' and Emma are working on adding 496 to 319 using the give and take strategy. If they give 4 to 496 and take it from 319, what are the two new numbers they are adding? 

Bonus: what is the final sum? 

500 and 315

Bonus: 815

200

What is 86-47?

39

200

What day do we have PE?

Thursday and Friday

300

What is a number that would round to 800? 

Any number between 750 and 849.

300

What is 79+79?

158

300

Wyatt is working on a claymation project. He used 172 pieces of blue clay and 456 pieces of red clay. How many pieces of clay did he use all together? 

628

300

Bella did 59 math problems and Autumn did 43 math problems. How many more math problems did Bella do than Autumn? 

16

300

What time does Mr. Archer's alarm go off on a school day?

4:30am!

400

What two hundreds does 560 fall between? 

500 and 600

400

What is one strategy you can use to solve an addition problem? 

Number Line

Give and Take

Mountain Strategy

Standard Algorithm

Add the hundreds, tens, and ones.

400

Jesslyn and Eliana were solving math equations. They got that 285+463=748. Are they correct? 

YOU KNOW IT!

400

What is 91-55?

36

400

What is one of Mr. Archer's favorite Room 26 Expectations?

Look for opportunities to help others.

Be principled - do what's right even when no one is watching.

500

Nolan is trying to figure out how to round 248 to the nearest HUNDRED. Nash offered to help him figure it out and suggested he look at the TENS PLACE to determine which way to round. What digit are they looking at, the 2, 4, or 8? What will 248 round to? 

The 4; 200. 

500

Kevin spent 45 minutes playing soccer and Colton spent 37 minutes playing basketball. How many minutes did the two boys spend playing games in all? 

82

500

What is 168+235?

403

500

Malia had 85 bags of slime. She gave 18 bags to Carson and 18 bags to Torrin. How many stickers does Malia have left now?

49

500

Where does Mr. Archer eat lunch?

In Room 26