Third Grade Addition and Subtraction

When we add two numbers and do the addition we use the symbol

• +

• -

• =

• x

Taking away a smaller number from the big number is called

• addition

• subtraction

9 + 8 =

37 + 5 =

An art teacher had 736 crayons.

She threw away 197 broken crayons. Then she bought 150 more crayons. Which equation shows how to find the number of crayons the art teacher has now?

• A

• B

• C

• D

516 + 468 =

• 974

• 1,984

• 984

• 986

• 
• 
• 
• 

What is 40 + 80?

• 320

• 110

• 120

• 140

James have 90 marshmallows in the jar. He adds 382 more. How many marshmallows are now in the jar? 

• 472

• 289

• 340

• 198

92 + 85 + 135 =