Addition
7 + 5
What is 12?
10 -5
What is 5?
Mrs. Jordan has 4 balls. Mr. Ngo gives her 4 more. How many balls does Mrs. Jordan have now?
What is 8 balls?
The answer in addition is called this.
What is sum?
What is a hundreds chart?
What is 27?
27 - 8
What is 19?
Mr. Sporgitas has 27 cats. 12 get lost in the woods. How many cats are left?
What is 15?
The numbers 0 through 9 are called.
What are digits?
When I use this strategy, I take from one number and give to another to make adding easier.
What is adjusting?
22 + 67
What is 89?
67 - 41
What is 26?
Mrs. Gordon has 78 race cars. Davi has 91 race cars. How many more race cars does Davi have than Mrs. Gordon?
What is 13 cars?
Break apart means.
What is decompose?
When I use this strategy, I take a number and turn it into tens and ones to make it easier to add and subtract.
What is decomposing?
179 + 37
What is 216?
271-44
What is 227?
Naomi has 567 pokemon cards. Jordan has 298 pokemon cards. Kerone has 78 fewer cards than Naomi. How many pokemon cards does Kerone have?
What is 489 cards?
To change something
What is adjust?
I use this tool to show jumps of hundreds, tens, and ones.
What is a number line?
278 + 349
What is 627?
862-345
What is 517?
Favour has 907 bats. He gives 35 to Quincy. Then he gets 15 more from Zuany. How many bats does Favour have left?
What is 887 bats?
A number that can be shared with two people is ____. A number that cannot be shared with two people is ____.
What is even and odd?
What is sticks and dots or base 10?