Here's your sign, Third Grade!

 

Can you place + and - signs between the following numerals to make the equation true? You can only use a total of 3 symbols and you cannot rearrange the numerals.

 

1 2 3 4 5 6 7 8 9 = 100

 

Ok, third graders...can you figure out my challenge?  You must really think hard!  Use your strategies and show me your class is full of Smarty Pants!

Third Grade on Parade...

Ok, third grade...it's time for your challenge...don't let me down!  Can you show me how many Smarty Pants we have in Third Grade? 

 

It’s time for the annual school fall parade. The third grade decides to march in a special formation this year. One person walks in the first row, two people walk in the second row and three people walk in the third row. This pattern continues on and on.

 

• If the whole third grade marches in 10 full rows, how many students are in the third grade?

 

• Use numbers, words, tables and/or pictures to explain how you know your answer is correct.

 

 Check out some of the ways our third graders solved this problem...


Draw it out...



Addition...

 Line plot...

 

Make a table...