Last week when we took our basic fact test there were two people who were proficient with addition. That means getting at least 68 of the 70 problems correct and doing them in 5 minutes or less.
11 people in our class are working to meet that expectation with addition. We also have to work on the same level of proficiency with subtraction and multiplication this year too. I hope you’ve been finding ways to practice and improve. Here are a few ideas and some problems that might help. Keep up the great work.
2-Digit Addition Split may be a good way for you to practice some facts and also learn how to use expanded notation to organize your math thinking. Click on the name and it will take you to the directions and show you how to do it. You can bring your work to school or you can post your work in a comment.
If you’re in the mood for some addition puzzles try some of these Magic Squares. Again, you can bring your work to school or share your work in a comment below. You can type your answers in a three by three pattern.
How many different 3-digit numbers can you make using the digits 1, 6 and 9? Order the numbers. What is the difference between the smallest and largest number?
Liam added two three-digit numbers and got a correct answer of 748. What might the two numbers be?
Which is larger: 1/4 or 3/8? Explain your reasoning.
961,196,619,169,916,691
In order 169,196,619,691,916,961
Smallest number is 169
Largest number is 961
961-169
First comes 861,then 801, then 792.
961-100=861-60=801-9=792
2 3 digit numbers adding up to 748
435
748-435=313
435+313=748
Now a subtraction
1,000-252=748
2,022-1,022=1,000-252=748
Wow Liam! You found all the three digit numbers and the way you ordered them proves that you have found them all. Creating a plan to organize your thinking is an important step.
Your work and your thinking are clear. You are organized and efficient.
Thank you for your work and effort.
Liam, that math must have taken you a long time. Nice effort!
nice math
Share what you’ve tried. Maybe you can even leave some problems of someone else to solve. Glad your checking.
Me and my class are doing School Picture Day as a readers theater play! I bet it will be a lot of fun!